diff --git a/Source/BasicParamsComponent.cpp b/Source/BasicParamsComponent.cpp
index 2576362..d9c93dd 100644
--- a/Source/BasicParamsComponent.cpp
+++ b/Source/BasicParamsComponent.cpp
@@ -7,12 +7,12 @@
   the "//[xyz]" and "//[/xyz]" sections will be retained when the file is loaded
   and re-saved.
 
-  Created with Projucer version: 5.4.5
+  Created with Projucer version: 6.0.8
 
   ------------------------------------------------------------------------------
 
   The Projucer is part of the JUCE library.
-  Copyright (c) 2017 - ROLI Ltd.
+  Copyright (c) 2020 - Raw Material Software Limited.
 
   ==============================================================================
 */
@@ -34,14 +34,14 @@ BasicParamsComponent::BasicParamsComponent (Magical8bitPlug2AudioProcessor& p, M
     //[Constructor_pre] You can add your own custom stuff here..
     //[/Constructor_pre]
 
-    polyLabel.reset (new Label ("label",
-                                TRANS("Poly")));
+    polyLabel.reset (new juce::Label ("label",
+                                      TRANS("Poly")));
     addAndMakeVisible (polyLabel.get());
-    polyLabel->setFont (Font (15.00f, Font::plain).withTypefaceStyle ("Regular"));
-    polyLabel->setJustificationType (Justification::centredLeft);
+    polyLabel->setFont (juce::Font (15.00f, juce::Font::plain).withTypefaceStyle ("Regular"));
+    polyLabel->setJustificationType (juce::Justification::centredLeft);
     polyLabel->setEditable (false, false, false);
-    polyLabel->setColour (TextEditor::textColourId, Colours::black);
-    polyLabel->setColour (TextEditor::backgroundColourId, Colour (0x00000000));
+    polyLabel->setColour (juce::TextEditor::textColourId, juce::Colours::black);
+    polyLabel->setColour (juce::TextEditor::backgroundColourId, juce::Colour (0x00000000));
 
     polyLabel->setBounds (232, 8, 40, 15);
 
@@ -49,7 +49,7 @@ BasicParamsComponent::BasicParamsComponent (Magical8bitPlug2AudioProcessor& p, M
     addAndMakeVisible (gainSlider.get());
     gainSlider->setName ("gain slider");
 
-    gainSlider->setBounds (0, 32, 360, 32);
+    gainSlider->setBounds (0, 32, 380, 32);
 
     oscChoice.reset (new ChoiceComponent (p, "osc", "OSC Type"));
     addAndMakeVisible (oscChoice.get());
@@ -57,16 +57,16 @@ BasicParamsComponent::BasicParamsComponent (Magical8bitPlug2AudioProcessor& p, M
 
     oscChoice->setBounds (0, 4, 224, 28);
 
-    polyNumberInput.reset (new Slider ("poly number input"));
+    polyNumberInput.reset (new juce::Slider ("poly number input"));
     addAndMakeVisible (polyNumberInput.get());
     polyNumberInput->setRange (0, 32, 1);
-    polyNumberInput->setSliderStyle (Slider::IncDecButtons);
-    polyNumberInput->setTextBoxStyle (Slider::TextBoxLeft, false, 30, 20);
+    polyNumberInput->setSliderStyle (juce::Slider::IncDecButtons);
+    polyNumberInput->setTextBoxStyle (juce::Slider::TextBoxLeft, false, 30, 20);
     polyNumberInput->addListener (this);
 
     polyNumberInput->setBounds (268, 4, 86, 24);
 
-    advancedSwitch.reset (new CheckBoxComponent (p, "isAdvancedPanelOpen_raw", "Show Advanced Options"));
+    advancedSwitch.reset (new CheckBoxComponent (p, "isAdvancedPanelOpen_raw", "Advanced Options"));
     addAndMakeVisible (advancedSwitch.get());
     advancedSwitch->setName ("advanced option switch");
 
@@ -74,6 +74,13 @@ BasicParamsComponent::BasicParamsComponent (Magical8bitPlug2AudioProcessor& p, M
     addAndMakeVisible (colorSchemeChoice.get());
     colorSchemeChoice->setName ("color selector");
 
+    monoButton.reset (new juce::TextButton ("mono button"));
+    addAndMakeVisible (monoButton.get());
+    monoButton->setButtonText (TRANS("mono"));
+    monoButton->addListener (this);
+
+    monoButton->setBounds (360, 4, 54, 24);
+
 
     //[UserPreSize]
     //[/UserPreSize]
@@ -104,6 +111,7 @@ BasicParamsComponent::~BasicParamsComponent()
     polyNumberInput = nullptr;
     advancedSwitch = nullptr;
     colorSchemeChoice = nullptr;
+    monoButton = nullptr;
 
 
     //[Destructor]. You can add your own custom destruction code here..
@@ -111,7 +119,7 @@ BasicParamsComponent::~BasicParamsComponent()
 }
 
 //==============================================================================
-void BasicParamsComponent::paint (Graphics& g)
+void BasicParamsComponent::paint (juce::Graphics& g)
 {
     //[UserPrePaint] Add your own custom painting code here..
     //[/UserPrePaint]
@@ -125,13 +133,13 @@ void BasicParamsComponent::resized()
     //[UserPreResize] Add your own custom resize code here..
     //[/UserPreResize]
 
-    advancedSwitch->setBounds (getWidth() - 240, 4, 240, 28);
+    advancedSwitch->setBounds (getWidth() - 180, 4, 180, 28);
     colorSchemeChoice->setBounds (getWidth() - 4 - 185, 32, 185, 28);
     //[UserResized] Add your own custom resize handling here..
     //[/UserResized]
 }
 
-void BasicParamsComponent::sliderValueChanged (Slider* sliderThatWasMoved)
+void BasicParamsComponent::sliderValueChanged (juce::Slider* sliderThatWasMoved)
 {
     //[UsersliderValueChanged_Pre]
     //[/UsersliderValueChanged_Pre]
@@ -140,6 +148,7 @@ void BasicParamsComponent::sliderValueChanged (Slider* sliderThatWasMoved)
     {
         //[UserSliderCode_polyNumberInput] -- add your slider handling code here..
         processor.setupVoice();
+        editor.resizeWholePanel();
         //[/UserSliderCode_polyNumberInput]
     }
 
@@ -147,6 +156,24 @@ void BasicParamsComponent::sliderValueChanged (Slider* sliderThatWasMoved)
     //[/UsersliderValueChanged_Post]
 }
 
+void BasicParamsComponent::buttonClicked (juce::Button* buttonThatWasClicked)
+{
+    //[UserbuttonClicked_Pre]
+    //[/UserbuttonClicked_Pre]
+
+    if (buttonThatWasClicked == monoButton.get())
+    {
+        polyNumberInput.get()->setValue(1);
+        //[UserButtonCode_monoButton] -- add your button handler code here..
+        //[/UserButtonCode_monoButton]
+    }
+
+    //[UserbuttonClicked_Post]
+    colorSchemeChoice->setVisible (buttonThatWasClicked->getToggleState());
+    editor.resizeWholePanel();
+    //[/UserbuttonClicked_Post]
+}
+
 
 
 //[MiscUserCode] You can add your own definitions of your custom methods or any other code here...
@@ -156,12 +183,6 @@ void BasicParamsComponent::comboBoxChanged (ComboBox* comboBoxThatHasChanged)
     editor.resized();
     printf ("setup voice!!\n");
 }
-
-void BasicParamsComponent::buttonClicked (Button* buttonThatWasClicked)
-{
-    colorSchemeChoice->setVisible (buttonThatWasClicked->getToggleState());
-    editor.resizeWholePanel();
-}
 //[/MiscUserCode]
 
 
@@ -187,7 +208,7 @@ BEGIN_JUCER_METADATA
          focusDiscardsChanges="0" fontname="Default font" fontsize="15.0"
          kerning="0.0" bold="0" italic="0" justification="33"/>
   <GENERICCOMPONENT name="gain slider" id="4bb22b329fed19e9" memberName="gainSlider"
-                    virtualName="" explicitFocusOrder="0" pos="0 32 360 32" class="SliderComponent"
+                    virtualName="" explicitFocusOrder="0" pos="0 32 380 32" class="SliderComponent"
                     params="p, &quot;gain&quot;, &quot;Gain&quot;"/>
   <GENERICCOMPONENT name="osc selector" id="fa2387d441a3005d" memberName="oscChoice"
                     virtualName="" explicitFocusOrder="0" pos="0 4 224 28" class="ChoiceComponent"
@@ -198,11 +219,14 @@ BEGIN_JUCER_METADATA
           textBoxEditable="1" textBoxWidth="30" textBoxHeight="20" skewFactor="1.0"
           needsCallback="1"/>
   <GENERICCOMPONENT name="advanced option switch" id="9d35239102eeb521" memberName="advancedSwitch"
-                    virtualName="" explicitFocusOrder="0" pos="0Rr 4 240 28" class="CheckBoxComponent"
-                    params="p, &quot;isAdvancedPanelOpen_raw&quot;, &quot;Show Advanced Options&quot;"/>
+                    virtualName="" explicitFocusOrder="0" pos="0Rr 4 180 28" class="CheckBoxComponent"
+                    params="p, &quot;isAdvancedPanelOpen_raw&quot;, &quot;Advanced Options&quot;"/>
   <GENERICCOMPONENT name="color selector" id="21d73ddc37680dd7" memberName="colorSchemeChoice"
                     virtualName="" explicitFocusOrder="0" pos="4Rr 32 185 28" class="ChoiceComponent"
                     params="p, &quot;colorScheme&quot;, &quot;Color&quot;"/>
+  <TEXTBUTTON name="mono button" id="9265bb1a11f90786" memberName="monoButton"
+              virtualName="" explicitFocusOrder="0" pos="360 4 54 24" buttonText="mono"
+              connectedEdges="0" needsCallback="1" radioGroupId="0"/>
 </JUCER_COMPONENT>
 
 END_JUCER_METADATA
diff --git a/Source/BasicParamsComponent.h b/Source/BasicParamsComponent.h
index 3329529..9ab13a4 100644
--- a/Source/BasicParamsComponent.h
+++ b/Source/BasicParamsComponent.h
@@ -7,12 +7,12 @@
   the "//[xyz]" and "//[/xyz]" sections will be retained when the file is loaded
   and re-saved.
 
-  Created with Projucer version: 5.4.5
+  Created with Projucer version: 6.0.8
 
   ------------------------------------------------------------------------------
 
   The Projucer is part of the JUCE library.
-  Copyright (c) 2017 - ROLI Ltd.
+  Copyright (c) 2020 - Raw Material Software Limited.
 
   ==============================================================================
 */
@@ -39,24 +39,24 @@ class Magical8bitPlug2AudioProcessorEditor;
                                                                     //[/Comments]
 */
 class BasicParamsComponent  : public Component,
-    public ComboBox::Listener,
-    public Button::Listener,
-    public Slider::Listener
+                              public ComboBox::Listener,
+                              public juce::Slider::Listener,
+                              public juce::Button::Listener
 {
 public:
     //==============================================================================
     BasicParamsComponent (Magical8bitPlug2AudioProcessor& p, Magical8bitPlug2AudioProcessorEditor& e);
-    ~BasicParamsComponent();
+    ~BasicParamsComponent() override;
 
     //==============================================================================
     //[UserMethods]     -- You can add your own custom methods in this section.
     void comboBoxChanged (ComboBox* comboBoxThatHasChanged) override;
-    void buttonClicked (Button* buttonThatWasClicked) override;
     //[/UserMethods]
 
-    void paint (Graphics& g) override;
+    void paint (juce::Graphics& g) override;
     void resized() override;
-    void sliderValueChanged (Slider* sliderThatWasMoved) override;
+    void sliderValueChanged (juce::Slider* sliderThatWasMoved) override;
+    void buttonClicked (juce::Button* buttonThatWasClicked) override;
 
 
 
@@ -69,12 +69,13 @@ private:
     //[/UserVariables]
 
     //==============================================================================
-    std::unique_ptr<Label> polyLabel;
+    std::unique_ptr<juce::Label> polyLabel;
     std::unique_ptr<SliderComponent> gainSlider;
     std::unique_ptr<ChoiceComponent> oscChoice;
-    std::unique_ptr<Slider> polyNumberInput;
+    std::unique_ptr<juce::Slider> polyNumberInput;
     std::unique_ptr<CheckBoxComponent> advancedSwitch;
     std::unique_ptr<ChoiceComponent> colorSchemeChoice;
+    std::unique_ptr<juce::TextButton> monoButton;
 
 
     //==============================================================================
diff --git a/Source/PluginEditor.cpp b/Source/PluginEditor.cpp
index d165238..4e2ff72 100644
--- a/Source/PluginEditor.cpp
+++ b/Source/PluginEditor.cpp
@@ -130,6 +130,9 @@ struct
 
     const int basCompoHeight = componentMargin * 2
                                + genericControlHeight * 2;
+    const int monoCompoHeight = componentMargin * 2
+                                + indexHeight
+                                + customEnvelopeHeight;
     const int toneSpecificControlHeight = componentMargin * 2
                                           + indexHeight
                                           + genericControlHeight;
@@ -148,30 +151,26 @@ struct
     const int advCompoHeight = componentMargin * 2
                                + indexHeight
                                + customEnvelopeHeight * 3;
-    const int totalHeight (bool isAdvOptOn)
+    const int totalHeight (bool isAdvOptOn, bool isMono)
     {
+        int retHeight = topMargin
+                      + basCompoHeight
+                      + sectionSeparatorHeight
+                      + toneSpecificControlHeight
+                      + envCompoHeight
+                      + bendCompoHeight
+                      + bottomMargin;
         if (isAdvOptOn)
         {
-            return   topMargin
-                     + basCompoHeight
-                     + sectionSeparatorHeight
-                     + toneSpecificControlHeight
-                     + envCompoHeight
-                     + bendCompoHeight
-                     + sectionSeparatorHeight
-                     + advCompoHeight
-                     + bottomMargin;
+            retHeight += sectionSeparatorHeight
+                         + advCompoHeight;
         }
-        else
+        if (isMono)
         {
-            return   topMargin
-                     + basCompoHeight
-                     + sectionSeparatorHeight
-                     + toneSpecificControlHeight
-                     + envCompoHeight
-                     + bendCompoHeight
-                     + bottomMargin;
+            retHeight += sectionSeparatorHeight
+                         + monoCompoHeight;
         }
+        return retHeight;
     }
 } sizes;
 
@@ -272,7 +271,8 @@ void Magical8bitPlug2AudioProcessorEditor::resized()
 
 void Magical8bitPlug2AudioProcessorEditor::resizeWholePanel()
 {
-    setSize (sizes.totalWidth, sizes.totalHeight (processor.settingRefs.isAdvancedPanelOpen()));
+    bool isMono = (int)(*processor.settingRefs.maxPoly) == 1;
+    setSize (sizes.totalWidth, sizes.totalHeight (processor.settingRefs.isAdvancedPanelOpen(), isMono));
 }
 
 void Magical8bitPlug2AudioProcessorEditor::parameterValueChanged (int parameterIndex, float newValue)