diff --git a/BizHawk.Client.EmuHawk/config/DisplayConfig.Designer.cs b/BizHawk.Client.EmuHawk/config/DisplayConfig.Designer.cs
index bf0c9e8537..50f04c9da6 100644
--- a/BizHawk.Client.EmuHawk/config/DisplayConfig.Designer.cs
+++ b/BizHawk.Client.EmuHawk/config/DisplayConfig.Designer.cs
@@ -32,8 +32,6 @@
 			System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(DisplayConfig));
 			this.btnDialogCancel = new BizHawk.WinForms.Controls.SzButtonEx();
 			this.btnDialogOK = new BizHawk.WinForms.Controls.SzButtonEx();
-			this.rbDispMethodOpenGL = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.lblDispMethodOpenGL = new BizHawk.WinForms.Controls.LocLabelEx();
 			this.tcDialog = new System.Windows.Forms.TabControl();
 			this.tpScaling = new BizHawk.WinForms.Controls.TabPageEx();
 			this.flpTpScaling = new BizHawk.WinForms.Controls.SzColumnsToRightFLP();
@@ -41,12 +39,12 @@
 			this.lblUserPrescale = new BizHawk.WinForms.Controls.LabelEx();
 			this.nudUserPrescale = new BizHawk.WinForms.Controls.SzNUDEx();
 			this.lblUserPrescaleUnits = new BizHawk.WinForms.Controls.LabelEx();
-			this.grpFilter = new BizHawk.WinForms.Controls.SzGroupBoxEx();
+			this.grpFilter = new BizHawk.WinForms.Controls.SzGroupBoxEx(out var trackerGrpFilter);
 			this.tlpGrpFilter = new System.Windows.Forms.TableLayoutPanel();
-			this.rbFilterNone = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbFilterUser = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbFilterHq2x = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbFilterScanline = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbFilterNone = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpFilter);
+			this.rbFilterUser = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpFilter);
+			this.rbFilterHq2x = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpFilter);
+			this.rbFilterScanline = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpFilter);
 			this.flpFilterUser = new BizHawk.WinForms.Controls.SingleColumnFLP();
 			this.btnFilterUser = new BizHawk.WinForms.Controls.SzButtonEx();
 			this.lblFilterUser = new BizHawk.WinForms.Controls.LabelEx();
@@ -54,24 +52,24 @@
 			this.lblFilterScanlineAlpha = new BizHawk.WinForms.Controls.LabelEx();
 			this.tbFilterScanlineAlpha = new BizHawk.Client.EmuHawk.TransparentTrackBar();
 			this.cbAutoPrescale = new BizHawk.WinForms.Controls.CheckBoxEx();
-			this.grpFinalFilter = new BizHawk.WinForms.Controls.SzGroupBoxEx();
+			this.grpFinalFilter = new BizHawk.WinForms.Controls.SzGroupBoxEx(out var trackerGrpFinalFilter);
 			this.flpGrpFinalFilter = new BizHawk.WinForms.Controls.LocSingleColumnFLP();
-			this.rbFinalFilterNone = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbFinalFilterBilinear = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbFinalFilterBicubic = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbFinalFilterNone = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpFinalFilter);
+			this.rbFinalFilterBilinear = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpFinalFilter);
+			this.rbFinalFilterBicubic = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpFinalFilter);
 			this.cbLetterbox = new BizHawk.WinForms.Controls.CheckBoxEx();
-			this.grpAspectRatio = new BizHawk.WinForms.Controls.SzGroupBoxEx();
+			this.grpAspectRatio = new BizHawk.WinForms.Controls.SzGroupBoxEx(out var trackerGrpAspectRatio);
 			this.flpGrpAspectRatio = new BizHawk.WinForms.Controls.LocSingleColumnFLP();
-			this.rbARSquare = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbARSquare = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpAspectRatio);
 			this.lblAspectRatioNonSquare = new BizHawk.WinForms.Controls.LabelEx();
-			this.rbARBySystem = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbARBySystem = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpAspectRatio);
 			this.flpCustomSize = new BizHawk.WinForms.Controls.SingleRowFLP();
-			this.rbARCustomSize = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbARCustomSize = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpAspectRatio);
 			this.txtARCustomWidth = new BizHawk.WinForms.Controls.SzTextBoxEx();
 			this.lblARCustomSizeSeparator = new BizHawk.WinForms.Controls.LabelEx();
 			this.txtARCustomHeight = new BizHawk.WinForms.Controls.SzTextBoxEx();
 			this.flpCustomAR = new BizHawk.WinForms.Controls.SingleRowFLP();
-			this.rbARCustomRatio = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbARCustomRatio = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpAspectRatio);
 			this.txtARCustomRatioH = new BizHawk.WinForms.Controls.SzTextBoxEx();
 			this.lblARCustomRatioSeparator = new BizHawk.WinForms.Controls.LabelEx();
 			this.txtARCustomRatioV = new BizHawk.WinForms.Controls.SzTextBoxEx();
@@ -89,23 +87,25 @@
 			this.btnDefaults = new BizHawk.WinForms.Controls.LocSzButtonEx();
 			this.tpDispMethod = new BizHawk.WinForms.Controls.TabPageEx();
 			this.flpTpDispMethod = new BizHawk.WinForms.Controls.SingleColumnFLP();
-			this.grpDispMethod = new BizHawk.WinForms.Controls.SzGroupBoxEx();
+			this.grpDispMethod = new BizHawk.WinForms.Controls.SzGroupBoxEx(out var trackerGrpDispMethod);
 			this.flpGrpDispMethod = new BizHawk.WinForms.Controls.LocSingleColumnFLP();
 			this.flpD3DSection = new BizHawk.WinForms.Controls.SingleColumnFLP();
-			this.rbDispMethodD3D = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbDispMethodD3D = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpDispMethod);
 			this.lblDispMethodD3D = new BizHawk.WinForms.Controls.LocLabelEx();
 			this.flpD3DAltVSync = new BizHawk.WinForms.Controls.SingleRowFLP();
 			this.cbD3DAltVSync = new BizHawk.WinForms.Controls.CheckBoxEx();
 			this.lblD3DAltVSync = new BizHawk.WinForms.Controls.SzLabelEx();
-			this.rbDispMethodGDIPlus = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbDispMethodOpenGL = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpDispMethod);
+			this.lblDispMethodOpenGL = new BizHawk.WinForms.Controls.LocLabelEx();
+			this.rbDispMethodGDIPlus = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpDispMethod);
 			this.lblDispMethodGDIPlus = new BizHawk.WinForms.Controls.LocLabelEx();
 			this.lblDispMethodRestartWarning = new BizHawk.WinForms.Controls.LabelEx();
 			this.tpMisc = new BizHawk.WinForms.Controls.TabPageEx();
-			this.grpDispFeatures = new BizHawk.WinForms.Controls.SzGroupBoxEx();
+			this.grpDispFeatures = new BizHawk.WinForms.Controls.SzGroupBoxEx(out var trackerGrpDispFeatures);
 			this.flpGrpDispFeatures = new BizHawk.WinForms.Controls.LocSingleColumnFLP();
-			this.rbDispFeaturesFull = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbDispFeaturesMinimal = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbDispFeaturesNothing = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbDispFeaturesFull = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpDispFeatures);
+			this.rbDispFeaturesMinimal = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpDispFeatures);
+			this.rbDispFeaturesNothing = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpDispFeatures);
 			this.tpWindow = new BizHawk.WinForms.Controls.TabPageEx();
 			this.flpTpWindow = new BizHawk.WinForms.Controls.SingleColumnFLP();
 			this.flpWindowFSGroups = new BizHawk.WinForms.Controls.SingleRowFLP();
diff --git a/BizHawk.Client.EmuHawk/config/EmuHawkOptions.Designer.cs b/BizHawk.Client.EmuHawk/config/EmuHawkOptions.Designer.cs
index 5fa9be43ac..3a747552cf 100644
--- a/BizHawk.Client.EmuHawk/config/EmuHawkOptions.Designer.cs
+++ b/BizHawk.Client.EmuHawk/config/EmuHawkOptions.Designer.cs
@@ -60,15 +60,15 @@
 			this.cbBackupSaveRAM = new BizHawk.WinForms.Controls.CheckBoxEx();
 			this.flpAutoSaveRAM = new BizHawk.WinForms.Controls.SingleRowFLP();
 			this.cbAutoSaveRAM = new BizHawk.WinForms.Controls.CheckBoxEx();
-			this.grpAutoSaveRAM = new BizHawk.WinForms.Controls.SzGroupBoxEx();
+			this.grpAutoSaveRAM = new BizHawk.WinForms.Controls.SzGroupBoxEx(out var trackerGrpAutoSaveRAM);
 			this.flpGrpAutoSaveRAM = new BizHawk.WinForms.Controls.LocSingleColumnFLP();
 			this.lblAutoSaveRAM = new BizHawk.WinForms.Controls.LabelEx();
 			this.flpAutoSaveRAMFreq = new BizHawk.WinForms.Controls.SingleRowFLP();
 			this.lblAutoSaveRAMFreqDesc = new BizHawk.WinForms.Controls.LabelEx();
-			this.cbAutoSaveRAMFreq5s = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.AutoSaveRAMFreq5min = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.cbAutoSaveRAMFreq5s = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpAutoSaveRAM);
+			this.AutoSaveRAMFreq5min = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpAutoSaveRAM);
 			this.flpAutoSaveRAMFreqCustom = new BizHawk.WinForms.Controls.SingleRowFLP();
-			this.rbAutoSaveRAMFreqCustom = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbAutoSaveRAMFreqCustom = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpAutoSaveRAM);
 			this.nudAutoSaveRAMFreqCustom = new BizHawk.WinForms.Controls.SzNUDEx();
 			this.lblAutoSaveRAMFreqCustomUnits = new BizHawk.WinForms.Controls.LabelEx();
 			this.flpFrameAdvPastLag = new BizHawk.WinForms.Controls.SingleColumnFLP();
@@ -82,10 +82,10 @@
 			this.flpMoviesInAWE = new BizHawk.WinForms.Controls.SingleColumnFLP();
 			this.cbMoviesInAWE = new BizHawk.WinForms.Controls.CheckBoxEx();
 			this.lblMoviesInAWE = new BizHawk.WinForms.Controls.LocLabelEx();
-			this.grpLuaEngine = new BizHawk.WinForms.Controls.SzGroupBoxEx();
+			this.grpLuaEngine = new BizHawk.WinForms.Controls.SzGroupBoxEx(out var trackerGrpLuaEngine);
 			this.flpGrpLuaEngine = new BizHawk.WinForms.Controls.LocSingleColumnFLP();
-			this.rbKopiLua = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbLuaInterface = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbKopiLua = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpLuaEngine);
+			this.rbLuaInterface = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpLuaEngine);
 			this.toolTip1 = new System.Windows.Forms.ToolTip(this.components);
 			this.flpDialogButtons = new BizHawk.WinForms.Controls.LocSzSingleRowFLP();
 			this.tcDialog.SuspendLayout();
diff --git a/BizHawk.Client.EmuHawk/config/SoundConfig.Designer.cs b/BizHawk.Client.EmuHawk/config/SoundConfig.Designer.cs
index f24210546f..45f2783a66 100644
--- a/BizHawk.Client.EmuHawk/config/SoundConfig.Designer.cs
+++ b/BizHawk.Client.EmuHawk/config/SoundConfig.Designer.cs
@@ -36,11 +36,11 @@
 			this.cbMasterEnable = new BizHawk.WinForms.Controls.CheckBoxEx();
 			this.lblMasterEnable = new BizHawk.WinForms.Controls.LocSzLabelEx();
 			this.cbMuteFrameAdvance = new BizHawk.WinForms.Controls.CheckBoxEx();
-			this.grpSoundMethod = new BizHawk.WinForms.Controls.SzGroupBoxEx();
+			this.grpSoundMethod = new BizHawk.WinForms.Controls.SzGroupBoxEx(out var trackerGrpSoundMethod);
 			this.flpGrpSoundMethod = new BizHawk.WinForms.Controls.LocSingleColumnFLP();
-			this.rbSoundMethodDirectSound = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbSoundMethodXAudio2 = new BizHawk.WinForms.Controls.RadioButtonEx();
-			this.rbSoundMethodOpenAL = new BizHawk.WinForms.Controls.RadioButtonEx();
+			this.rbSoundMethodDirectSound = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpSoundMethod);
+			this.rbSoundMethodXAudio2 = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpSoundMethod);
+			this.rbSoundMethodOpenAL = new BizHawk.WinForms.Controls.RadioButtonEx(trackerGrpSoundMethod);
 			this.grpVolume.SuspendLayout();
 			this.flpGrpVolume.SuspendLayout();
 			this.flpFullSpeed.SuspendLayout();
diff --git a/BizHawk.WinForms.Controls/GroupBoxEx/GroupBoxExBase.cs b/BizHawk.WinForms.Controls/GroupBoxEx/GroupBoxExBase.cs
new file mode 100644
index 0000000000..7f62bf6efc
--- /dev/null
+++ b/BizHawk.WinForms.Controls/GroupBoxEx/GroupBoxExBase.cs
@@ -0,0 +1,20 @@
+using System.ComponentModel;
+using System.Windows.Forms;
+
+namespace BizHawk.WinForms.Controls
+{
+	public abstract class GroupBoxExBase : GroupBox
+	{
+		public readonly RadioButtonGroupTracker Tracker;
+
+		[Browsable(false)]
+		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+		public new int TabIndex => base.TabIndex;
+
+		[Browsable(false)]
+		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+		public new bool TabStop => base.TabStop;
+
+		protected GroupBoxExBase(out IRadioButtonReadOnlyTracker tracker) => tracker = Tracker = new RadioButtonGroupTracker();
+	}
+}
diff --git a/BizHawk.WinForms.Controls/GroupBoxEx/IRadioButtonReadOnlyTracker.cs b/BizHawk.WinForms.Controls/GroupBoxEx/IRadioButtonReadOnlyTracker.cs
new file mode 100644
index 0000000000..17d7031d98
--- /dev/null
+++ b/BizHawk.WinForms.Controls/GroupBoxEx/IRadioButtonReadOnlyTracker.cs
@@ -0,0 +1,14 @@
+using System.Windows.Forms;
+
+namespace BizHawk.WinForms.Controls
+{
+	/// <summary>Functions as a write-only collection of <see cref="ITrackedRadioButton">ITrackedRadioButtons</see>.</summary>
+	/// <remarks>Elements should have unique <see cref="Control.Name">Names</see>; breaking this rule is UB, not checked at runtime.</remarks>
+	/// <seealso cref="RadioButtonGroupTracker"/>
+	public interface IRadioButtonReadOnlyTracker
+	{
+		void Add(ITrackedRadioButton rb);
+
+		void UpdateDeselected(string name);
+	}
+}
diff --git a/BizHawk.WinForms.Controls/GroupBoxEx/ITrackedRadioButton.cs b/BizHawk.WinForms.Controls/GroupBoxEx/ITrackedRadioButton.cs
new file mode 100644
index 0000000000..b9ef99d4a6
--- /dev/null
+++ b/BizHawk.WinForms.Controls/GroupBoxEx/ITrackedRadioButton.cs
@@ -0,0 +1,12 @@
+namespace BizHawk.WinForms.Controls
+{
+	public interface ITrackedRadioButton
+	{
+		/// <remarks>Does not declare a setter intentionally, use <see cref="UncheckFromTracker"/>.</remarks>
+		bool Checked { get; }
+
+		string Name { get; }
+
+		void UncheckFromTracker();
+	}
+}
diff --git a/BizHawk.WinForms.Controls/GroupBoxEx/LocSzGroupBoxEx.cs b/BizHawk.WinForms.Controls/GroupBoxEx/LocSzGroupBoxEx.cs
index 7faff32f68..64fa44ee8f 100644
--- a/BizHawk.WinForms.Controls/GroupBoxEx/LocSzGroupBoxEx.cs
+++ b/BizHawk.WinForms.Controls/GroupBoxEx/LocSzGroupBoxEx.cs
@@ -1,20 +1,15 @@
 using System.ComponentModel;
-using System.Windows.Forms;
 
 namespace BizHawk.WinForms.Controls
 {
 	/// <inheritdoc cref="Docs.GroupBox"/>
-	public class LocSzGroupBoxEx : GroupBox
+	public class LocSzGroupBoxEx : GroupBoxExBase
 	{
 		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 		public new bool AutoSize => base.AutoSize;
 
-		[Browsable(false)]
-		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
-		public new int TabIndex => base.TabIndex;
+		public LocSzGroupBoxEx() : base(out _) {}
 
-		[Browsable(false)]
-		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
-		public new bool TabStop => base.TabStop;
+		public LocSzGroupBoxEx(out IRadioButtonReadOnlyTracker tracker) : base(out tracker) {}
 	}
 }
diff --git a/BizHawk.WinForms.Controls/GroupBoxEx/RadioButtonGroupTracker.cs b/BizHawk.WinForms.Controls/GroupBoxEx/RadioButtonGroupTracker.cs
new file mode 100644
index 0000000000..10574a0259
--- /dev/null
+++ b/BizHawk.WinForms.Controls/GroupBoxEx/RadioButtonGroupTracker.cs
@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+using System.Windows.Forms;
+
+namespace BizHawk.WinForms.Controls
+{
+	/// <summary>
+	/// Functions as a collection of <see cref="ITrackedRadioButton">ITrackedRadioButtons</see>.<br/>
+	/// Using this in our custom <see cref="GroupBox">GroupBoxes</see> circumvents the direct-child restriction on radio buttons.
+	/// With that gone, we're free to use nested <see cref="FlowLayoutPanel">FLPs</see> in our layouts, the cost being the complexity of this class and its related types.
+	/// </summary>
+	/// <remarks>Elements should have unique <see cref="Control.Name">Names</see>; breaking this rule is UB, not checked at runtime.</remarks>
+	/// <inheritdoc cref="IRadioButtonReadOnlyTracker"/>
+	public sealed class RadioButtonGroupTracker : List<ITrackedRadioButton>, IRadioButtonReadOnlyTracker
+	{
+		public void UpdateDeselected(string name)
+		{
+			foreach (var rb in this) if (rb.Name != name) rb.UncheckFromTracker();
+		}
+	}
+}
diff --git a/BizHawk.WinForms.Controls/GroupBoxEx/SzGroupBoxEx.cs b/BizHawk.WinForms.Controls/GroupBoxEx/SzGroupBoxEx.cs
index c7b3c06ae6..2cbc9a415b 100644
--- a/BizHawk.WinForms.Controls/GroupBoxEx/SzGroupBoxEx.cs
+++ b/BizHawk.WinForms.Controls/GroupBoxEx/SzGroupBoxEx.cs
@@ -1,11 +1,10 @@
 using System.ComponentModel;
 using System.Drawing;
-using System.Windows.Forms;
 
 namespace BizHawk.WinForms.Controls
 {
 	/// <inheritdoc cref="Docs.GroupBox"/>
-	public class SzGroupBoxEx : GroupBox
+	public class SzGroupBoxEx : GroupBoxExBase
 	{
 		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 		public new bool AutoSize => base.AutoSize;
@@ -13,12 +12,8 @@ namespace BizHawk.WinForms.Controls
 		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 		public new Point Location => base.Location;
 
-		[Browsable(false)]
-		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
-		public new int TabIndex => base.TabIndex;
+		public SzGroupBoxEx() : base(out _) {}
 
-		[Browsable(false)]
-		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
-		public new bool TabStop => base.TabStop;
+		public SzGroupBoxEx(out IRadioButtonReadOnlyTracker tracker) : base(out tracker) {}
 	}
 }
diff --git a/BizHawk.WinForms.Controls/RadioButtonEx/RadioButtonEx.cs b/BizHawk.WinForms.Controls/RadioButtonEx/RadioButtonEx.cs
index 7bd303bad6..6e8c80d16d 100644
--- a/BizHawk.WinForms.Controls/RadioButtonEx/RadioButtonEx.cs
+++ b/BizHawk.WinForms.Controls/RadioButtonEx/RadioButtonEx.cs
@@ -15,6 +15,8 @@ namespace BizHawk.WinForms.Controls
 		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 		public new Size Size => base.Size;
 
-		public RadioButtonEx() => base.AutoSize = true;
+		public RadioButtonEx() {}
+
+		public RadioButtonEx(IRadioButtonReadOnlyTracker tracker) : base(tracker) => base.AutoSize = true;
 	}
 }
diff --git a/BizHawk.WinForms.Controls/RadioButtonEx/RadioButtonExBase.cs b/BizHawk.WinForms.Controls/RadioButtonEx/RadioButtonExBase.cs
index a5a9f8f43a..64c5a6cb36 100644
--- a/BizHawk.WinForms.Controls/RadioButtonEx/RadioButtonExBase.cs
+++ b/BizHawk.WinForms.Controls/RadioButtonEx/RadioButtonExBase.cs
@@ -3,12 +3,15 @@ using System.Windows.Forms;
 
 namespace BizHawk.WinForms.Controls
 {
-	public abstract class RadioButtonExBase : RadioButton
+	public abstract class RadioButtonExBase : RadioButton, ITrackedRadioButton
 	{
+		/// <remarks>use to prevent recursion</remarks>
+		protected bool CheckedChangedCausedByTracker { get; private set; }
+
 		[Browsable(false)]
 		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
-		public new int TabIndex => base.TabIndex;
-
+		public new int TabIndex => base.TabIndex;
+
 		[Browsable(false)]
 		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 		public new bool TabStop => base.TabStop;
@@ -16,5 +19,23 @@ namespace BizHawk.WinForms.Controls
 		[Browsable(false)]
 		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
 		public new bool UseVisualStyleBackColor => base.UseVisualStyleBackColor;
+
+		protected RadioButtonExBase() {}
+
+		protected RadioButtonExBase(IRadioButtonReadOnlyTracker tracker)
+		{
+			tracker.Add(this);
+			CheckedChanged += (changedSender, changedArgs) =>
+			{
+				if (((RadioButtonExBase) changedSender).Checked) tracker.UpdateDeselected(Name);
+			};
+		}
+
+		public void UncheckFromTracker()
+		{
+			CheckedChangedCausedByTracker = true;
+			Checked = false;
+			CheckedChangedCausedByTracker = false;
+		}
 	}
 }