diff --git a/orx-jvm/orx-gui/build.gradle.kts b/orx-jvm/orx-gui/build.gradle.kts
index e818fdc1..e1b44697 100644
--- a/orx-jvm/orx-gui/build.gradle.kts
+++ b/orx-jvm/orx-gui/build.gradle.kts
@@ -9,6 +9,7 @@ dependencies {
     api(project(":orx-jvm:orx-panel"))
     api(project(":orx-noise"))
     demoImplementation(project(":orx-property-watchers"))
+    implementation(libs.kotlin.coroutines)
     implementation(libs.openrndr.application)
     implementation(libs.openrndr.math)
     implementation(libs.openrndr.filter)
diff --git a/orx-jvm/orx-gui/src/main/kotlin/WindowedGUI.kt b/orx-jvm/orx-gui/src/main/kotlin/WindowedGUI.kt
index ef4b233b..f52fe313 100644
--- a/orx-jvm/orx-gui/src/main/kotlin/WindowedGUI.kt
+++ b/orx-jvm/orx-gui/src/main/kotlin/WindowedGUI.kt
@@ -1,31 +1,62 @@
 package org.openrndr.extra.gui
 
-import org.openrndr.Extension
-import org.openrndr.Program
-import org.openrndr.WindowConfiguration
+import org.openrndr.*
 import org.openrndr.extra.parameters.title
+import org.openrndr.internal.Driver
 import org.openrndr.math.IntVector2
 import org.openrndr.panel.style.StyleSheet
 import org.openrndr.panel.style.defaultStyles
-import org.openrndr.window
 
-class WindowedGUI(val appearance: GUIAppearance = GUIAppearance(), val defaultStyles: List<StyleSheet> = defaultStyles()) : Extension {
+private val childWindows = mutableMapOf<Long, ApplicationWindow>()
+
+class WindowedGUI(
+    val appearance: GUIAppearance = GUIAppearance(),
+    val defaultStyles: List<StyleSheet> = defaultStyles()
+) : Extension {
     override var enabled: Boolean = true
 
-    val addedObjects = mutableListOf<Pair<Any, String?>>()
+    private val addedObjects = mutableListOf<Pair<Any, String?>>()
     fun <T : Any> add(objectWithParameters: T, label: String? = objectWithParameters.title()): T {
         addedObjects.add(Pair(objectWithParameters, label))
         return objectWithParameters
     }
 
-
     override fun setup(program: Program) {
-        program.window(WindowConfiguration(width = 200, height = program.height, position = program.window.position.toInt() - IntVector2(200,0) )) {
-            val gui = GUI(appearance, defaultStyles)
-            for ((obj, label) in addedObjects) {
-                gui.add(obj, label)
+        val window = childWindows[Driver.instance.contextID]
+        if (window != null) {
+            window.program.mouse.exited.listeners.clear()
+            window.program.mouse.entered.listeners.clear()
+            window.program.mouse.buttonUp.listeners.clear()
+            window.program.mouse.buttonDown.listeners.clear()
+            window.program.mouse.dragged.listeners.clear()
+            window.program.mouse.scrolled.listeners.clear()
+            window.program.mouse.moved.listeners.clear()
+            window.program.keyboard.keyUp.listeners.clear()
+            window.program.keyboard.keyDown.listeners.clear()
+            window.program.keyboard.keyRepeat.listeners.clear()
+            window.program.keyboard.character.listeners.clear()
+            window.program.extensions.clear()
+        }
+
+        val cw = childWindows.getOrPut(Driver.instance.contextID) {
+            program.window(
+                WindowConfiguration(
+                    width = 200,
+                    height = program.height,
+                    position = program.window.position.toInt() - IntVector2(200, 0)
+                )
+            ) {
+                //
             }
-            extend(gui)
+        }
+
+        // launch because at this stage Driver.instance.contextID points to the context of the parent window
+        cw.program.launch {
+            val gui = GUI(appearance, defaultStyles)
+            for (o in addedObjects) {
+                gui.add(o.first, o.second)
+            }
+            cw.program.extend(gui)
         }
     }
 }
\ No newline at end of file