diff --git a/CMakeLists.txt b/CMakeLists.txt
index 851ef76..fca0ed8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,10 +1,10 @@
 cmake_minimum_required(VERSION 3.16.0)
 project(pipedal 
-    VERSION 1.2.33
+    VERSION 1.2.34
     DESCRIPTION "PiPedal Guitar Effect Pedal For Raspberry Pi"
     HOMEPAGE_URL "https://rerdavies.github.io/pipedal"
 )
-set (DISPLAY_VERSION "v1.2.31beta1")
+set (DISPLAY_VERSION "v1.2.34beta2")
 
 set (CMAKE_INSTALL_PREFIX "/usr/")
 
diff --git a/README.md b/README.md
index 7c9f656..9a56385 100644
--- a/README.md
+++ b/README.md
@@ -1,12 +1,12 @@
 
 <img src='docs/GithubBanner.png' width="100%" /><br/>
 
-Download: <a href='https://rerdavies.github.io/pipedal/download.html'>v1.2.33 Beta1</a> 
+Download: <a href='https://rerdavies.github.io/pipedal/download.html'>v1.2.34 Beta1</a> 
 
 Website: [https://rerdavies.github.io/pipedal](https://rerdavies.github.io/pipedal).
 
 
-> NEW version 1.2.33 beta1 release, providing support for Raspberry Pi OS Bookworm. See the [release notes](https://rerdavies.github.io/pipedal/ReleaseNotes) for details.
+> NEW version 1.2.34 beta2 release, providing support for Raspberry Pi OS Bookworm. See the [release notes](https://rerdavies.github.io/pipedal/ReleaseNotes) for details.
 
 Use your Raspberry Pi as a guitar effects pedal. Configure and control PiPedal with your phone or tablet.
 PiPedal running on a Raspberry Pi 4 provides stable super-low-latency audio via external USB audio devices, or internal Raspberry Pi audio hats.
diff --git a/docs/download.md b/docs/download.md
index 167f4b7..453b855 100644
--- a/docs/download.md
+++ b/docs/download.md
@@ -4,17 +4,17 @@
 
 Download the most recent Debian (.deb) package for your platform:
 
-- <a href="https://github.com/rerdavies/pipedal/releases/download/v1.2.33/pipedal_1.2.33_arm64.deb">Raspberry Pi OS Bookworm (64-bit) v1.2.33 Beta1</a>
+- <a href="https://github.com/rerdavies/pipedal/releases/download/v1.2.34/pipedal_1.2.34_arm64.deb">Raspberry Pi OS Bookworm (64-bit) v1.2.34 Beta2</a>
 - <a href="https://github.com/rerdavies/pipedal/releases/download/v1.1.31/pipedal_1.1.31_arm64.deb">Ubuntu 21.04 or Raspberry Pi OS Buster (64-bit) v1.1.31</a>
 
-v1.2.33 Beta1 is does not currently support Ubuntu 21.04, or older versions of Raspberry Pi OS. 
+v1.2.34 Beta1 is does not currently support Ubuntu 21.04, or older versions of Raspberry Pi OS. 
 
 Install the package by running 
 
 ```
   sudo apt update
   cd ~/Downloads  
-  sudo apt-get install ./pipedal_1.2.33_arm64.deb
+  sudo apt-get install ./pipedal_1.2.34_arm64.deb
 ```
 
 Follow the instructions in [_Configuring PiPedal After Installation_](https://rerdavies.github.io/pipedal/Configuring.html) to complete the installation.
diff --git a/react/src/ControlViewFactory.tsx b/react/src/ControlViewFactory.tsx
index 8c91334..ae6698a 100644
--- a/react/src/ControlViewFactory.tsx
+++ b/react/src/ControlViewFactory.tsx
@@ -29,13 +29,14 @@ import IControlViewFactory from './IControlViewFactory';
 import { GxTunerViewFactory } from './GxTunerView';
 import ToobPowerstage2ViewFactory from './ToobPowerStage2View';
 import ToobSpectrumAnalyzerViewFactory from './ToobSpectrumAnalyzerView';
-// import ToobMLViewFactory from './ToobMLView';
+import ToobMLViewFactory from './ToobMLView';
+
 
 let pluginFactories: IControlViewFactory[] = [
     new GxTunerViewFactory(),
     new ToobPowerstage2ViewFactory(),
     new ToobSpectrumAnalyzerViewFactory(),
-    //new ToobMLViewFactory()
+    new ToobMLViewFactory()
 ];
 
 
diff --git a/react/src/Lv2Plugin.tsx b/react/src/Lv2Plugin.tsx
index 978ceb1..4ec695f 100644
--- a/react/src/Lv2Plugin.tsx
+++ b/react/src/Lv2Plugin.tsx
@@ -506,7 +506,7 @@ export class  UiControl implements Deserializable<UiControl> {
                 this.controlType = ControlType.Vu;
             }
         }
-        else if (this.isValidEnumeration())
+        if (this.isValidEnumeration())
         {
             this.controlType = ControlType.Select;
             if (this.scale_points.length === 2)
@@ -520,7 +520,10 @@ export class  UiControl implements Deserializable<UiControl> {
             }
         }
         return this;
-
+    }
+    applyProperties(properties: Partial<UiControl>): UiControl 
+    {
+        return {...this,...properties};
     }
     private hasScalePoint(value: number): boolean {
         for (let scale_point of this.scale_points)
@@ -726,7 +729,7 @@ export class  UiControl implements Deserializable<UiControl> {
                 text += "s";
                 break;
             // Midinote: not handled.
-            // semitone12TET not handled.
+            // semitone12TET not handled. 
 
 
 
@@ -759,6 +762,7 @@ export class  UiControl implements Deserializable<UiControl> {
     
 }
 
+
 export class UiPlugin implements Deserializable<UiPlugin> {
     deserialize(input: any): UiPlugin 
     {
@@ -802,6 +806,11 @@ export class UiPlugin implements Deserializable<UiPlugin> {
         }
         return result;
     }
+
+    isSplit(): boolean {
+        return this.uri === "uri://two-play/pipedal/pedalboard#Split";
+
+    }
     getControl(key: string): UiControl | undefined {
         for (let i = 0; i < this.controls.length; ++i)
         {
@@ -860,3 +869,136 @@ export class UiPlugin implements Deserializable<UiPlugin> {
     is_vst3 :            boolean = false;
 }
 
+
+
+export function makeSplitUiPlugin(): UiPlugin
+{
+
+    return new UiPlugin().deserialize({
+        uri:                  "uri://two-play/pipedal/pedalboard#Split",
+        name:                 "Split",
+        brand:                "",
+        label:                "",
+        plugin_type:         PluginType.SplitA,
+        plugin_display_type: "Split",
+        author_name:         "",
+        author_homepage:     "",
+        audio_inputs:        1,
+        audio_outputs:       1,
+        has_midi_input:      0,
+        has_midi_output:     0,
+        description: "",
+        controls:       [
+            new UiControl().applyProperties({
+                symbol: "splitType",
+                name:   "Type",
+                index: 0,
+                is_input: true,
+                min_value: 0.0,
+                max_value:  2.0,
+                enumeration_property: true,
+                scale_points: [
+                    new ScalePoint().deserialize({value: 0, label: "A/B"}),
+                    new ScalePoint().deserialize({value: 1, label: "mix"}),
+                    new ScalePoint().deserialize({value: 1, label: "L/R"}),
+                ],
+                is_bypass: false,
+                is_program_controller: false,
+                custom_units: "",
+                connection_optional: false,
+            
+            }) ,
+            new UiControl().applyProperties({
+                symbol: "select",
+                name:   "Select",
+                index: 1,
+                is_input: true,
+                min_value: 0.0,
+                max_value:  1.0,
+                enumeration_property: true,
+                scale_points: [
+                    new ScalePoint().deserialize({value: 0, label: "A"}),
+                    new ScalePoint().deserialize({value: 1, label: "B"}),
+                ],
+                is_bypass: false,
+                is_program_controller: false,
+                custom_units: "",
+                connection_optional: false,
+            
+            }) ,
+
+            new UiControl().applyProperties({
+                symbol: "mix",
+                name:   "Mix",
+                index: 2,
+                is_input: true,
+                min_value: -1.0,
+                max_value:  1.0,
+                is_bypass: false,
+                is_program_controller: false,
+                custom_units: "",
+                connection_optional: false,
+            
+            }) ,
+            new UiControl().applyProperties({
+                symbol: "panL",
+                name:   "Pan Top",
+                index: 3,
+                is_input: true,
+                min_value: -1.0,
+                max_value:  1.0,
+                is_bypass: false,
+                is_program_controller: false,
+                custom_units: "",
+                connection_optional: false,
+            
+            }) ,
+            new UiControl().applyProperties({
+                symbol: "volL",
+                name:   "Vol Top",
+                index: 4,
+                is_input: true,
+                min_value: -60.0,
+                max_value:  12.0,
+                is_bypass: false,
+                is_program_controller: false,
+                custom_units: "",
+                connection_optional: false,
+            
+            }) ,
+            new UiControl().applyProperties({
+                symbol: "panR",
+                name:   "Pan Bottom",
+                index: 5,
+                is_input: true,
+                min_value: -1.0,
+                max_value:  1.0,
+                is_bypass: false,
+                is_program_controller: false,
+                custom_units: "",
+                connection_optional: false,
+            
+            }) ,
+            new UiControl().applyProperties({
+                symbol: "volR",
+                name:   "Vol Bottom",
+                index: 6,
+                is_input: true,
+                min_value: -60.0,
+                max_value:  12.0,
+                is_bypass: false,
+                is_program_controller: false,
+                custom_units: "",
+                connection_optional: false,
+            }) 
+        ],
+        port_groups:    [],
+        fileProperties: [],
+        frequencyPlots: [],
+        is_vst3 :       false,
+    
+    }
+    );
+}
+
+
diff --git a/react/src/MidiBindingView.tsx b/react/src/MidiBindingView.tsx
index b9fc6e7..4df072f 100644
--- a/react/src/MidiBindingView.tsx
+++ b/react/src/MidiBindingView.tsx
@@ -32,6 +32,7 @@ import MicNoneOutlinedIcon from '@mui/icons-material/MicNoneOutlined';
 import MicOutlinedIcon from '@mui/icons-material/MicOutlined';
 import IconButton from '@mui/material/IconButton';
 import NumericInput from './NumericInput';
+import { UiPlugin } from './Lv2Plugin';
 
 
 
@@ -45,6 +46,7 @@ interface MidiBindingViewProps extends WithStyles<typeof styles> {
     instanceId: number;
     listen: boolean;
     midiBinding: MidiBinding;
+    uiPlugin: UiPlugin;
     onChange: (instanceId: number, newBinding: MidiBinding) => void;
     onListen: (instanceId: number, key: string, listenForControl: boolean) => void;
 }
@@ -139,8 +141,7 @@ const MidiBindingView =
             render() {
                 let classes = this.props.classes;
                 let midiBinding = this.props.midiBinding;
-                let pedalboardItem = this.model.pedalboard.get().getItem(this.props.instanceId);
-                let uiPlugin = this.model.getUiPlugin(pedalboardItem.uri);
+                let uiPlugin = this.props.uiPlugin;
                 if (!uiPlugin) {
                     return (<div />);
                 }
@@ -258,7 +259,11 @@ const MidiBindingView =
                                         value={midiBinding.switchControlType}
                                     >
                                         <MenuItem value={MidiBinding.LATCH_CONTROL_TYPE}>Toggle</MenuItem>
-                                        <MenuItem value={MidiBinding.MOMENTARY_CONTROL_TYPE}>Momentary</MenuItem>
+                                        <MenuItem value={MidiBinding.MOMENTARY_CONTROL_TYPE}>{
+                                            (midiBinding.bindingType === MidiBinding.BINDING_TYPE_NOTE) ? 
+                                                "Note on/off"
+                                                : "Control value"
+                                        }</MenuItem>
                                     </Select>
                                 </div>
                             ))
diff --git a/react/src/MidiBindingsDialog.tsx b/react/src/MidiBindingsDialog.tsx
index 5b9efb8..bd4c6f1 100644
--- a/react/src/MidiBindingsDialog.tsx
+++ b/react/src/MidiBindingsDialog.tsx
@@ -33,6 +33,7 @@ import IconButton from '@mui/material/IconButton';
 import MidiBinding from './MidiBinding';
 import MidiBindingView from './MidiBindingView';
 import Snackbar from '@mui/material/Snackbar';
+import { UiPlugin,makeSplitUiPlugin } from './Lv2Plugin';
 
 const styles = (theme: Theme) => createStyles({
     dialogAppBar: {
@@ -62,6 +63,10 @@ const styles = (theme: Theme) => createStyles({
     },
 });
 
+function not_null<T>(value: T | null) { 
+    if (!value) throw Error("Unexpected null value");
+    return value;
+}
 
 export interface MidiBindingDialogProps extends WithStyles<typeof styles> {
     open: boolean,
@@ -189,7 +194,43 @@ export const MidiBindingDialog =
                     let item = v.value;
 
 
-                    let plugin = this.model.getUiPlugin(item.uri);
+                    let isSplit = item.uri === "uri://two-play/pipedal/pedalboard#Split";
+                    let plugin : UiPlugin | null = this.model.getUiPlugin(item.uri);
+                    if (plugin === null && isSplit)
+                    {
+                        plugin = makeSplitUiPlugin();
+                        let splitType = item.getControlValue("splitType");
+                        not_null(plugin.getControl("splitType")).not_on_gui = true;
+                        switch (splitType)
+                        {
+                        case 0: // A/B
+                            not_null(plugin.getControl("select")).not_on_gui = false;
+                            not_null(plugin.getControl("mix")).not_on_gui = true;
+                            not_null(plugin.getControl("volL")).not_on_gui = true;
+                            not_null(plugin.getControl("panL")).not_on_gui = true;
+                            not_null(plugin.getControl("volR")).not_on_gui = true;
+                            not_null(plugin.getControl("panR")).not_on_gui = true;
+                            break;
+                        case 1: //mixer
+                            not_null(plugin.getControl("select")).not_on_gui = true;
+                            not_null(plugin.getControl("mix")).not_on_gui = false;
+                            not_null(plugin.getControl("volL")).not_on_gui = true;
+                            not_null(plugin.getControl("panL")).not_on_gui = true;
+                            not_null(plugin.getControl("volR")).not_on_gui = true;
+                            not_null(plugin.getControl("panR")).not_on_gui = true;
+                            break;
+                        case 2: // L/R
+                            not_null(plugin.getControl("select")).not_on_gui = true;
+                            not_null(plugin.getControl("mix")).not_on_gui = true;
+                            not_null(plugin.getControl("volL")).not_on_gui = false;
+                            not_null(plugin.getControl("panL")).not_on_gui = false;
+                            not_null(plugin.getControl("volR")).not_on_gui = false;
+                            not_null(plugin.getControl("panR")).not_on_gui = false;
+                            break;                       
+                        }
+
+                        // xxx
+                    }
                     if (plugin) {
                         result.push(
                             <tr>
@@ -200,29 +241,33 @@ export const MidiBindingDialog =
                                 </td>
                             </tr>
                         );
-                        result.push(
-                            <tr>
-                                <td className={classes.nameTd}>
-                                    <Typography noWrap style={{ verticalAlign: "center", height: 48 }}>
-                                        Bypass
-                                    </Typography>
-                                </td>
-                                <td className={classes.bindingTd}>
-                                    <MidiBindingView instanceId={item.instanceId} midiBinding={item.getMidiBinding("__bypass")}
-                                        onListen={(instanceId: number, symbol: string, listenForControl: boolean) => {
-                                            if (instanceId === -2)
-                                            {
-                                                this.cancelListenForControl();
-                                            } else {
-                                                this.handleListenForControl(instanceId, symbol, listenForControl);
-                                            }
-                                        }}
-                                        listen={item.instanceId === this.state.listenInstanceId && this.state.listenSymbol === "__bypass"}
-                                        onChange={(instanceId: number, newItem: MidiBinding) => this.handleItemChanged(instanceId, newItem)}
-                                    />
-                                </td>
-                            </tr>
-                        );
+                        if (!isSplit)
+                        {
+                            result.push(
+                                <tr>
+                                    <td className={classes.nameTd}>
+                                        <Typography noWrap style={{ verticalAlign: "center", height: 48 }}>
+                                            Bypass
+                                        </Typography>
+                                    </td>
+                                    <td className={classes.bindingTd}>
+                                        <MidiBindingView instanceId={item.instanceId} midiBinding={item.getMidiBinding("__bypass")}
+                                            uiPlugin={plugin}
+                                            onListen={(instanceId: number, symbol: string, listenForControl: boolean) => {
+                                                if (instanceId === -2)
+                                                {
+                                                    this.cancelListenForControl();
+                                                } else {
+                                                    this.handleListenForControl(instanceId, symbol, listenForControl);
+                                                }
+                                            }}
+                                            listen={item.instanceId === this.state.listenInstanceId && this.state.listenSymbol === "__bypass"}
+                                            onChange={(instanceId: number, newItem: MidiBinding) => this.handleItemChanged(instanceId, newItem)}
+                                        />
+                                    </td>
+                                </tr>
+                            );
+                        }
 
                         for (let i = 0; i < plugin.controls.length; ++i) {
                             let control = plugin.controls[i];
@@ -244,6 +289,7 @@ export const MidiBindingDialog =
                                     </td>
                                     <td className={classes.bindingTd}>
                                         <MidiBindingView instanceId={item.instanceId}
+                                            uiPlugin={plugin}
                                             midiBinding={item.getMidiBinding(symbol)}
                                             listen={item.instanceId === this.state.listenInstanceId && this.state.listenSymbol === symbol}
                                             onListen={(instanceId: number, symbol: string, listenForControl: boolean) => {
diff --git a/react/src/PedalboardView.tsx b/react/src/PedalboardView.tsx
index c5014bc..33971b4 100644
--- a/react/src/PedalboardView.tsx
+++ b/react/src/PedalboardView.tsx
@@ -367,12 +367,14 @@ const PedalboardView =
 
             frameRef: React.RefObject<HTMLDivElement>;
             scrollRef: React.RefObject<HTMLDivElement>;
-
+            private bgColor: string;
 
             constructor(props: PedalboardProps) {
                 super(props);
                 this.model = PiPedalModelFactory.getInstance();
 
+                this.bgColor = props.theme.palette.background.default
+
                 if (!props.selectedId) props.selectedId = -1;
                 this.state = {
                     pedalboard: this.model.pedalboard.get(),
@@ -692,6 +694,7 @@ const PedalboardView =
                 let y_ = item.bounds.y + CELL_HEIGHT / 2;
                 let numberOfOutputs = item.numberOfOutputs;
                 let color = enabled ? ENABLED_CONNECTOR_COLOR : DISABLED_CONNECTOR_COLOR;
+                let stereoCenterColor = this.bgColor;
                 let svgPath = new SvgPathBuilder().moveTo(x_, y_).lineTo(x_ + CELL_WIDTH, y_).toString();
 
                 if (numberOfOutputs === 2) {
@@ -699,7 +702,7 @@ const PedalboardView =
                         <path key={this.renderKey++}  d={svgPath} stroke={color} strokeWidth={SVG_STEREO_STROKE_WIDTH} />
                     ));
                     output.push((
-                        <path key={this.renderKey++}  d={svgPath} stroke="white" strokeWidth={SVG_STROKE_WIDTH} />
+                        <path key={this.renderKey++}  d={svgPath} stroke={stereoCenterColor} strokeWidth={SVG_STROKE_WIDTH} />
                     ));
                 } else if (numberOfOutputs === 1) {
                     output.push((
@@ -727,14 +730,14 @@ const PedalboardView =
 
                 if (item.numberOfInputs === 2 && item.topChildren[0].numberOfInputs === 2) {
                     output.push((<path key={this.renderKey++}  d={topStartPath} stroke={topColor} strokeWidth={SVG_STEREO_STROKE_WIDTH} />));
-                    output.push((<path key={this.renderKey++}  d={topStartPath} stroke="white" strokeWidth={SVG_STROKE_WIDTH} />));
+                    output.push((<path key={this.renderKey++}  d={topStartPath} stroke={this.bgColor} strokeWidth={SVG_STROKE_WIDTH} />));
                 } else if (item.numberOfInputs !== 0 && item.topChildren[0].numberOfInputs !== 0) {
                     output.push((<path key={this.renderKey++}  d={topStartPath} stroke={topColor} strokeWidth={SVG_STROKE_WIDTH} />));
                 }
 
                 if (item.numberOfInputs === 2 && item.bottomChildren[0].numberOfInputs === 2) {
                     output.push((<path key={this.renderKey++}  d={bottomStartPath} stroke={bottomColor} strokeWidth={SVG_STEREO_STROKE_WIDTH} />));
-                    output.push((<path key={this.renderKey++}  d={bottomStartPath} stroke="white" strokeWidth={SVG_STROKE_WIDTH} />));
+                    output.push((<path key={this.renderKey++}  d={bottomStartPath} stroke={this.bgColor} strokeWidth={SVG_STROKE_WIDTH} />));
 
                 } else if (item.numberOfInputs !== 0 && item.bottomChildren[0].numberOfInputs !== 0) {
                     output.push((<path key={this.renderKey++}  d={bottomStartPath} stroke={bottomColor} strokeWidth={SVG_STROKE_WIDTH} />));
@@ -824,7 +827,7 @@ const PedalboardView =
                             <path key={this.renderKey++}  d={firstPath} stroke={firstPathColor} strokeWidth={SVG_STEREO_STROKE_WIDTH} />
                         ));
                         output.push((
-                            <path key={this.renderKey++}  d={firstPath} stroke="white" strokeWidth={SVG_STROKE_WIDTH} />
+                            <path key={this.renderKey++}  d={firstPath} stroke={this.bgColor} strokeWidth={SVG_STROKE_WIDTH} />
                         ));
                     } else if (!firstPathAbsent) {
                         output.push((
@@ -836,7 +839,7 @@ const PedalboardView =
                             <path key={this.renderKey++}  d={secondPath} stroke={secondPathColor} strokeWidth={SVG_STEREO_STROKE_WIDTH} />
                         ));
                         output.push((
-                            <path key={this.renderKey++}  d={secondPath} stroke="white" strokeWidth={SVG_STROKE_WIDTH} />
+                            <path key={this.renderKey++}  d={secondPath} stroke={this.bgColor} strokeWidth={SVG_STROKE_WIDTH} />
                         ));
                     } else if (!secondPathAbsent) {
                         output.push((
@@ -868,12 +871,12 @@ const PedalboardView =
                     // draw stereo inner lines.
                     if (firstPathStereo) {
                         output.push((
-                            <path key={this.renderKey++}  d={firstPath} stroke="white" strokeWidth={SVG_STROKE_WIDTH} />
+                            <path key={this.renderKey++}  d={firstPath} stroke={this.bgColor} strokeWidth={SVG_STROKE_WIDTH} />
                         ));
                     }
                     if (secondPathStereo) {
                         output.push((
-                            <path key={this.renderKey++}  d={secondPath} stroke="white" strokeWidth={SVG_STROKE_WIDTH} />
+                            <path key={this.renderKey++}  d={secondPath} stroke={this.bgColor} strokeWidth={SVG_STROKE_WIDTH} />
                         ));
 
                     }
@@ -885,7 +888,7 @@ const PedalboardView =
                         <path key={this.renderKey++}  d={thirdPath} stroke={secondPathColor} strokeWidth={SVG_STEREO_STROKE_WIDTH} />
                     ));
                     output.push((
-                        <path key={this.renderKey++}  d={thirdPath} stroke="white" strokeWidth={SVG_STROKE_WIDTH} />
+                        <path key={this.renderKey++}  d={thirdPath} stroke={this.bgColor} strokeWidth={SVG_STROKE_WIDTH} />
                     ));
 
 
@@ -958,7 +961,7 @@ const PedalboardView =
                 let outputs: ReactNode[] = [];
                 this.renderConnectors(outputs, layoutChain, true, false);
                 return (
-                    <div style={{width: layoutSize.width, height: layoutSize.height, overflow: "hidden"}}>
+                    <div key="connectors" style={{width: layoutSize.width, height: layoutSize.height, overflow: "hidden"}}>
                     <svg width={layoutSize.width} height={layoutSize.height}
                         xmlns="http://www.w3.org/2000/svg" viewBox={"0 0 " + layoutSize.width + " " + layoutSize.height}>
                         <g fill="none">
diff --git a/react/src/PiPedalModel.tsx b/react/src/PiPedalModel.tsx
index fe277dd..3b98ccf 100644
--- a/react/src/PiPedalModel.tsx
+++ b/react/src/PiPedalModel.tsx
@@ -423,6 +423,7 @@ export class PiPedalModel //implements PiPedalModel
         //if (retry !== 0) {
         if (this.restartExpected) {
             this.setState(State.ApplyingChanges);
+            this.restartExpected = false;
         } else {
             this.setState(State.Reconnecting);
         }
diff --git a/react/src/ToobMLView.tsx b/react/src/ToobMLView.tsx
index f5fe4e1..dc69c76 100644
--- a/react/src/ToobMLView.tsx
+++ b/react/src/ToobMLView.tsx
@@ -25,12 +25,10 @@ import createStyles from '@mui/styles/createStyles';
 import withStyles from '@mui/styles/withStyles';
 
 import IControlViewFactory from './IControlViewFactory';
-import { PiPedalModelFactory, PiPedalModel,MonitorPortHandle } from "./PiPedalModel";
+import { PiPedalModelFactory, PiPedalModel, MonitorPortHandle } from "./PiPedalModel";
 import { PedalboardItem } from './Pedalboard';
-import PluginControlView, { ControlGroup,ControlViewCustomization } from './PluginControlView';
-import ToobFrequencyResponseView from './ToobFrequencyResponseView';
-
-
+import PluginControlView, { ControlGroup, ControlViewCustomization } from './PluginControlView';
+// import ToobFrequencyResponseView from './ToobFrequencyResponseView';
 
 const styles = (theme: Theme) => createStyles({
 });
@@ -46,13 +44,12 @@ interface ToobMLState {
 
 const ToobMLView =
     withStyles(styles, { withTheme: true })(
-        class extends React.Component<ToobMLProps, ToobMLState> 
-        implements ControlViewCustomization
-        {
+        class extends React.Component<ToobMLProps, ToobMLState>
+            implements ControlViewCustomization {
             model: PiPedalModel;
             gainRef: React.RefObject<HTMLDivElement>;
 
-            customizationId: number = 1; 
+            customizationId: number = 1;
 
             constructor(props: ToobMLProps) {
                 super(props);
@@ -65,57 +62,75 @@ const ToobMLView =
 
             subscribedId?: number = undefined;
             monitorPortHandle?: MonitorPortHandle = undefined;
-            removeGainEnabledSubscription()
-            {
-                if (this.monitorPortHandle)
-                {
+            removeGainEnabledSubscription() {
+                if (this.monitorPortHandle) {
                     this.model.unmonitorPort(this.monitorPortHandle);
                     this.monitorPortHandle = undefined;
                 }
             }
-            addGainEnabledSubscription(instanceId: number)
-            {
+            addGainEnabledSubscription(instanceId: number) {
                 this.removeGainEnabledSubscription();
                 this.subscribedId = instanceId;
-                this.monitorPortHandle = this.model.monitorPort(instanceId,"gainEnable",0.1,
+                this.monitorPortHandle = this.model.monitorPort(instanceId, "gainEnable", 0.1,
                     (value: number) => {
-                        if (this.gainRef.current)
-                        {
-                            this.gainRef.current.style.opacity = value !== 0.0? "1.0": "0.4";
+                        if (this.gainRef.current) {
+                            this.gainRef.current.style.opacity = value !== 0.0 ? "1.0" : "0.4";
+                            if (value !== 0.0) {
+                                this.gainRef.current.style.pointerEvents = 'auto';
+                            } else {
+                                this.gainRef.current.style.pointerEvents = 'none';
+                            }
                         }
-                        this.setState({gainEnabled: value !== 0.0 });
+                        this.setState({ gainEnabled: value !== 0.0 });
                     });
             }
 
-            componentDidUpdate()
-            {
-                if (this.props.instanceId !== this.subscribedId)
-                {
-                    this.removeGainEnabledSubscription();
-                    this.addGainEnabledSubscription(this.props.instanceId);
+            // componentDidUpdate() {
+            //     if (this.props.instanceId !== this.subscribedId) {
+            //         this.removeGainEnabledSubscription();
+            //         this.addGainEnabledSubscription(this.props.instanceId);
 
+            //     }
+            // }
+            componentDidMount() {
+                this.addGainEnabledSubscription(this.props.instanceId);
+                if (this.gainRef.current) {
+                    this.gainRef.current.style.opacity = '0.4';
+                    this.gainRef.current.style.pointerEvents = 'none';
                 }
             }
-            componentDidMount()
-            {
-                this.addGainEnabledSubscription(this.props.instanceId);
-            }
-            componentWillUnmount()
-            {
+            componentWillUnmount() {
                 this.removeGainEnabledSubscription();
             }
 
-            ModifyControls(controls: (React.ReactNode| ControlGroup)[]): (React.ReactNode| ControlGroup)[]
-            {
-                let group = controls[4] as ControlGroup;
-                group.controls.splice(0,0,
-                    ( <ToobFrequencyResponseView instanceId={this.props.instanceId} />)
-                    );
-
-                let gainControl: React.ReactElement = controls[2] as React.ReactElement;
-                if (gainControl)
+            ModifyControls(controls: (React.ReactNode | ControlGroup)[]): (React.ReactNode | ControlGroup)[] {
+                // Find EQ group
+                // let group = controls.find((control) => typeof control !== 'string' && (control as ControlGroup).name === "EQ") as ControlGroup;
+                // if (group) {
+                //     group.controls.splice(0,0,
+                //         ( <ToobFrequencyResponseView 
+                //             instanceId={this.props.instanceId} 
+                //             />)
+                //         );
+                // }
+                let controlIndex: number = -1;
+                let controlValues = this.props.item.controlValues
+                for (let i:number = 0; i < controlValues.length; ++i)
                 {
-                    controls[2] = (<div ref={this.gainRef}> { gainControl} </div>);
+                    let ctl: any = controls[i];
+                    let key: any = ctl?.props?.uiControl?.symbol??"";
+                    
+                    if (key === "gain")
+                    {
+                        controlIndex = i;
+                        break;
+                    }
+                }
+
+                if (controlIndex !== -1 ) {
+
+                    let gainControl: React.ReactElement = controls[controlIndex] as React.ReactElement;
+                    controls[controlIndex] = (<div ref={this.gainRef}> {gainControl} </div>);
                 }
                 return controls;
             }
diff --git a/src/ConfigMain.cpp b/src/ConfigMain.cpp
index 4961e2f..cf4fd77 100644
--- a/src/ConfigMain.cpp
+++ b/src/ConfigMain.cpp
@@ -37,6 +37,7 @@
 #include <random>
 #include "AudioConfig.hpp"
 #include "WifiChannelSelectors.hpp"
+#include <grp.h>
 
 #if JACK_HOST
 #define INSTALL_JACK_SERVICE 1
@@ -592,6 +593,100 @@ static std::string RandomChars(int nchars)
     return s.str();
 }
 
+void SetVarPermissions(
+    const std::filesystem::path &path, 
+    std::filesystem::perms directoryPermissions,
+    std::filesystem::perms filePermissions,
+    uid_t uid, gid_t gid)
+{
+    namespace fs = std::filesystem;
+    using namespace std::filesystem;
+    try {
+        if (fs::exists(path)) {
+            
+            if (fs::is_directory(path)) {
+                fs::permissions(path, directoryPermissions, fs::perm_options::replace);
+                for (const auto& entry : fs::recursive_directory_iterator(path)) {
+                    try {
+                        if (fs::is_directory(entry))
+                        {
+                            fs::permissions(entry.path(), directoryPermissions, fs::perm_options::replace);
+                        } else {
+                            fs::permissions(entry.path(),filePermissions, fs::perm_options::replace);
+                        }
+                    } catch (const std::exception &e)
+                    {
+                        std::cout << "Error: failed to set permissions on file " << entry.path() << std::endl;                        
+                    }
+                    if (chown(path.c_str(),uid,gid) != 0)
+                    {
+                        std::cout << "Error: failed to set ownership of file " << entry.path() << std::endl;
+                    }
+
+                }
+            } else {
+                fs::permissions(path,filePermissions, fs::perm_options::replace);
+                chown(path.c_str(),uid,gid);
+            }
+        } else {
+            std::cout  << "Error: Path does not exist: " << path << std::endl;
+        }
+    } catch (const std::filesystem::filesystem_error& e) {
+        std::cerr << "Error: " << e.what() << std::endl;
+    }    
+}
+
+
+static void FixPermissions()
+{
+    namespace fs = std::filesystem;
+    using namespace std::filesystem;
+
+    fs::create_directories("/var/pipedal");
+
+    fs::perms directoryPermissions = 
+        fs::perms::owner_read | fs::perms::owner_write | fs::perms::owner_exec |
+        fs::perms::group_read | fs::perms::group_write | fs::perms::group_exec |
+        fs::perms::others_read | fs::perms::others_exec |
+        fs::perms::set_gid;
+    
+    fs::perms filePermissions = 
+        fs::perms::owner_read | fs::perms::owner_write | 
+        fs::perms::group_read | fs::perms::group_write | 
+        fs::perms::others_read ;
+    
+    uid_t uid;
+    struct passwd *passwd;
+    if ((passwd = getpwnam("pipedal_d")) == nullptr)
+    {
+        cout << "Error: " << "User 'pipedal_d' does not exist." << endl;
+        return;
+    }
+    uid = passwd->pw_uid;
+    gid_t gid = passwd->pw_gid;
+    SetVarPermissions("/var/pipedal",directoryPermissions,filePermissions,uid,gid);
+
+    fs::perms wpa_supplicant_perms = 
+        fs::perms::owner_read | fs::perms::owner_write |
+        fs::perms::group_read | fs::perms::group_write;
+    
+    std::filesystem::path wpa_config_path{ "/etc/pipedal/config/wpa_supplicant/wpa_supplicant-pipedal.conf"};
+    try {
+        fs::permissions(wpa_config_path,wpa_supplicant_perms, fs::perm_options::replace);
+
+        struct group*grp = getgrnam("netdev");
+        if (grp != nullptr)
+        {
+            if (chown(wpa_config_path.c_str(),0,grp->gr_gid) != 0)
+            {
+                cout << "Error: Failed to change ownership of " << wpa_config_path << endl;
+            }
+        }
+    } catch (const std::exception&e)
+    {
+        cout << "Error: Failed to set permissions on " << wpa_config_path << ". " << e.what() << endl;
+    }
+}
 static void PrepareServiceConfigurationFile(uint16_t portNumber)
 {
     ServiceConfiguration serviceConfiguration;
@@ -827,6 +922,7 @@ void Install(const std::filesystem::path &programPrefix, const std::string endpo
 
         sysExec(SYSTEMCTL_BIN " daemon-reload");
 
+        FixPermissions();
         RestartService(false);
         EnableService();
     }
@@ -1070,6 +1166,7 @@ int main(int argc, char **argv)
     bool enable_p2p = false, disable_p2p = false;
     bool list_p2p_channels = false;
     bool get_current_port = false;
+    bool fix_permissions = false;
     bool nosudo = false;
     bool excludeShutdownService = false;
     std::string prefixOption;
@@ -1092,7 +1189,8 @@ int main(int argc, char **argv)
     parser.AddOption("--enable-p2p", &enable_p2p);
     parser.AddOption("--disable-p2p", &disable_p2p);
     parser.AddOption("--list-p2p-channels", &list_p2p_channels);
-
+    parser.AddOption("--fix-permissions", &fix_permissions);
+ 
 
     parser.AddOption("--get-current-port", &get_current_port); // private. For debug use only.
 
@@ -1104,7 +1202,7 @@ int main(int argc, char **argv)
         int actionCount = 
             help + get_current_port + install + uninstall + stop + start + enable + disable 
             + enable_ap + disable_ap + restart + enable_p2p + disable_p2p
-            + list_p2p_channels
+            + list_p2p_channels + fix_permissions
             ;
         if (actionCount > 1)
         {
@@ -1169,6 +1267,11 @@ int main(int argc, char **argv)
 
     try
     {
+        if (fix_permissions)
+        {
+            FixPermissions();
+            return EXIT_SUCCESS;
+        }
         if (install)
         {
             std::filesystem::path prefix;
diff --git a/src/Lv2Pedalboard.cpp b/src/Lv2Pedalboard.cpp
index 038b1d4..129e9b4 100644
--- a/src/Lv2Pedalboard.cpp
+++ b/src/Lv2Pedalboard.cpp
@@ -261,15 +261,15 @@ void Lv2Pedalboard::PrepareMidiMap(const PedalboardItem &pedalboardItem)
 {
     if (pedalboardItem.midiBindings().size() != 0)
     {
-        auto pluginInfo = pHost->GetPluginInfo(pedalboardItem.uri());
-        const Lv2PluginInfo *pPluginInfo;
-        if (pluginInfo == nullptr && pedalboardItem.uri() == SPLIT_PEDALBOARD_ITEM_URI)
+        Lv2PluginInfo::ptr pluginInfo;
+        if (pedalboardItem.uri() == SPLIT_PEDALBOARD_ITEM_URI)
         {
-            pPluginInfo = GetSplitterPluginInfo();
+            pluginInfo = GetSplitterPluginInfo();
         }
         else
         {
-            pPluginInfo = pluginInfo.get();
+            pluginInfo = pHost->GetPluginInfo(pedalboardItem.uri());
+            
         }
 
         int effectIndex = this->GetIndexOfInstanceId(pedalboardItem.instanceId());
@@ -351,21 +351,10 @@ void Lv2Pedalboard::PrepareMidiMap(const Pedalboard &pedalboard)
         auto &item = pedalboard.items()[i];
         PrepareMidiMap(item);
 
-        auto pluginInfo = pHost->GetPluginInfo(item.uri());
-
-        if (pluginInfo)
-        {
-            for (size_t bindingIndex = 0; bindingIndex < item.midiBindings().size(); ++bindingIndex)
-            {
-                auto &binding = item.midiBindings()[i];
-                {
-                }
-            }
-        }
-        std::sort(this->midiMappings.begin(), this->midiMappings.end(),
-                  [](const MidiMapping &left, const MidiMapping &right)
-                  { return left.key < right.key; });
     }
+    std::sort(this->midiMappings.begin(), this->midiMappings.end(),
+                [](const MidiMapping &left, const MidiMapping &right)
+                { return left.key < right.key; });
 }
 void Lv2Pedalboard::Activate()
 {
@@ -606,7 +595,7 @@ void Lv2Pedalboard::OnMidiMessage(size_t size, uint8_t *message,
         if (size < 3)
             return;
         index = message[1];
-        value = 127;
+        value = message[2] == 0? 0: 127; // zero velocity = note off.
     }
     else if (cmd == 0xB0) // midi control.
     {
diff --git a/src/PiPedalModel.cpp b/src/PiPedalModel.cpp
index cf209d5..a001da1 100644
--- a/src/PiPedalModel.cpp
+++ b/src/PiPedalModel.cpp
@@ -1266,21 +1266,20 @@ void PiPedalModel::OnNotifyMidiValueChanged(int64_t instanceId, int portIndex, f
     PedalboardItem *item = this->pedalboard.GetItem(instanceId);
     if (item)
     {
-        const Lv2PluginInfo *pPluginInfo;
+        Lv2PluginInfo::ptr pPluginInfo;
         if (item->uri() == SPLIT_PEDALBOARD_ITEM_URI)
         {
             pPluginInfo = GetSplitterPluginInfo();
         }
         else
         {
-            auto pluginInfo = lv2Host.GetPluginInfo(item->uri());
-            pPluginInfo = pluginInfo.get();
+            pPluginInfo = lv2Host.GetPluginInfo(item->uri());
         }
         if (pPluginInfo)
         {
             if (portIndex == -1)
             {
-                // bypass!
+                // bypass! yyy this->value!!!
                 this->pedalboard.SetItemEnabled(instanceId, value != 0);
                 // take a snapshot incase a client unsusbscribes in the notification handler (in which case the mutex won't protect us)
                 IPiPedalModelSubscriber **t = new IPiPedalModelSubscriber *[this->subscribers.size()];
@@ -1675,16 +1674,15 @@ void PiPedalModel::SetJackServerSettings(const JackServerSettings &jackServerSet
 
 void PiPedalModel::UpdateDefaults(PedalboardItem *pedalboardItem)
 {
-    std::shared_ptr<Lv2PluginInfo> t = lv2Host.GetPluginInfo(pedalboardItem->uri());
-    const Lv2PluginInfo *pPlugin = t.get();
-    if (pPlugin == nullptr)
+    std::shared_ptr<Lv2PluginInfo> pPlugin = lv2Host.GetPluginInfo(pedalboardItem->uri());
+    if (!pPlugin)
     {
         if (pedalboardItem->uri() == SPLIT_PEDALBOARD_ITEM_URI)
         {
             pPlugin = GetSplitterPluginInfo();
         }
     }
-    if (pPlugin != nullptr)
+    if (pPlugin)
     {
         for (size_t i = 0; i < pPlugin->ports().size(); ++i)
         {
diff --git a/src/PluginHost.cpp b/src/PluginHost.cpp
index ea74f97..ecdc638 100644
--- a/src/PluginHost.cpp
+++ b/src/PluginHost.cpp
@@ -1353,6 +1353,10 @@ Lv2PortGroup::Lv2PortGroup(PluginHost *lv2Host, const std::string &groupUri)
     name_ = nodeAsString(nameNode);
 }
 
+bool Lv2PluginInfo::isSplit() const 
+{
+    return uri_ == SPLIT_PEDALBOARD_ITEM_URI;
+}
 std::shared_ptr<HostWorkerThread> PluginHost::GetHostWorkerThread()
 {
     return pHostWorkerThread;
diff --git a/src/PluginHost.hpp b/src/PluginHost.hpp
index 9423ff2..29b52e3 100644
--- a/src/PluginHost.hpp
+++ b/src/PluginHost.hpp
@@ -337,8 +337,10 @@ namespace pipedal
         friend class PluginHost;
 
     public:
+        using ptr = std::shared_ptr<Lv2PluginInfo>;
         Lv2PluginInfo(PluginHost *lv2Host, LilvWorld *pWorld, const LilvPlugin *);
         Lv2PluginInfo() {}
+        bool isSplit() const ;
 
     private:
         std::shared_ptr<PiPedalUI> FindWritablePathProperties(PluginHost *lv2Host, const LilvPlugin *pPlugin);
diff --git a/src/SplitEffect.cpp b/src/SplitEffect.cpp
index 13ba886..54acba2 100644
--- a/src/SplitEffect.cpp
+++ b/src/SplitEffect.cpp
@@ -33,6 +33,8 @@ static std::shared_ptr<Lv2PortInfo> MakeBypassPortInfo()
     bypassPortInfo->is_input(true);
     bypassPortInfo->is_control_port(true);
     bypassPortInfo->index(-1);
+
+    
     bypassPortInfo->min_value(0);
     bypassPortInfo->max_value(1);
     bypassPortInfo->default_value(1);
@@ -159,9 +161,9 @@ static Lv2PluginInfo makeSplitterPluginInfo()
     return result;
 }
 
-Lv2PluginInfo g_splitterPluginInfo = makeSplitterPluginInfo();
+Lv2PluginInfo::ptr g_splitterPluginInfo = std::make_shared<Lv2PluginInfo>(makeSplitterPluginInfo());
 
-const Lv2PluginInfo *pipedal::GetSplitterPluginInfo() { return &g_splitterPluginInfo; }
+Lv2PluginInfo::ptr pipedal::GetSplitterPluginInfo() { return g_splitterPluginInfo; }
 
 int SplitEffect::GetControlIndex(const std::string &symbol) const
 {
diff --git a/src/SplitEffect.hpp b/src/SplitEffect.hpp
index 22384cb..5114213 100644
--- a/src/SplitEffect.hpp
+++ b/src/SplitEffect.hpp
@@ -36,7 +36,7 @@ namespace pipedal
     class Lv2PluginInfo;
     class Lv2PortInfo;
 
-    const Lv2PluginInfo *GetSplitterPluginInfo();
+    std::shared_ptr<Lv2PluginInfo> GetSplitterPluginInfo();
 
     const Lv2PortInfo *GetBypassPortInfo();
 
diff --git a/src/Storage.cpp b/src/Storage.cpp
index a6b4c43..87cd435 100644
--- a/src/Storage.cpp
+++ b/src/Storage.cpp
@@ -1624,14 +1624,19 @@ std::string Storage::UploadUserFile(const std::string &directory, const std::str
         throw std::logic_error("patchProperty directory not implemented.");
     }
     {
-        std::filesystem::create_directories(path.parent_path());
+        try {
+            std::filesystem::create_directories(path.parent_path());
 
-        std::ofstream f(path, std::ios_base::trunc | std::ios_base::binary);
-        if (!f.is_open())
+            std::ofstream f(path, std::ios_base::trunc | std::ios_base::binary);
+            if (!f.is_open())
+            {
+                throw std::logic_error(SS("Can't create file " << path << "."));
+            }
+            f.write(fileBody.c_str(), fileBody.length());
+        } catch (const std::exception &e)
         {
-            throw std::logic_error(SS("Can't create file " << path << "."));
+            Lv2Log::error(SS("Upload failed. " << e.what()));
         }
-        f.write(fileBody.c_str(), fileBody.length());
     }
     return path.string();
 }