diff --git a/pui/pui.cpp b/pui/pui.cpp
index 68ffcb7..bf2025d 100644
--- a/pui/pui.cpp
+++ b/pui/pui.cpp
@@ -12,7 +12,7 @@ void PUi::OnReshape(int w, int h)
 	glMatrixMode(GL_PROJECTION);
 	glLoadIdentity();
 	glViewport(0, 0, w, h);
-	glOrtho(0, w, h, 0, 0, 1);
+	glOrtho(0, w * scale, h * scale, 0, 0, 1);
 	glMatrixMode(GL_MODELVIEW);
 	glDisable(GL_DEPTH_TEST);
 	glLoadIdentity();
@@ -26,8 +26,52 @@ void PUi::OnDisplay()
 	this->widget->OnPaint();
 }
 
+void PUi::OnKeyboard(bool press, uint32_t key)
+{
+	printf("keyboard %d %X\n", press, key);
+}
+
+void PUi::OnSpecial(bool press, PuglKey key)
+{
+	if (press) {
+		uint32_t port = (this->active ? this->active->port : 0);
+		uint32_t newport = port;
+
+		switch (key) {
+			case PUGL_KEY_LEFT: newport--; break;
+			case PUGL_KEY_RIGHT: newport++; break;
+
+			case PUGL_KEY_PAGE_UP: this->OnScroll(0, 2.5f); return;
+			case PUGL_KEY_PAGE_DOWN: this->OnScroll(0, -2.5f); return;
+			case PUGL_KEY_UP: this->OnScroll(0, 1); return;
+			case PUGL_KEY_DOWN: this->OnScroll(0, -1); return;
+
+			case PUGL_KEY_SHIFT: this->mm |= 1; break;
+			case PUGL_KEY_CTRL: this->mm |= 2; break;
+			default: break;
+		}
+
+		if (port != newport) {
+			if (this->active) this->active->active = false;
+			this->active = this->widget->GetWidget(newport);
+			if (this->active) this->active->active = true;
+			this->Repaint();
+		}
+	} else {
+		switch (key) {
+			case PUGL_KEY_SHIFT: this->mm &= ~1; break;
+			case PUGL_KEY_CTRL: this->mm &= ~2; break;
+			default: break;
+		}
+	}
+	printf("special %d %X\n", press, key);
+}
+
 void PUi::OnMotion(int x, int y)
 {
+	x *= scale;
+	y *= scale;
+
 	if (!this->mb) {
 		/* No button */
 		Widget *w = this->widget->GetWidget(x, y);
@@ -52,6 +96,9 @@ void PUi::OnMotion(int x, int y)
 
 void PUi::OnMouse(int button, bool press, int x, int y)
 {
+	x *= scale;
+	y *= scale;
+
 	/* Keep track of button state */
 	if (press) {
 		this->mb |= (1 << button);
@@ -84,7 +131,10 @@ void PUi::OnMouse(int button, bool press, int x, int y)
 void PUi::OnScroll(float dx, float dy)
 {
 	if (this->active) {
-		float value = this->active->value + (dy * .1f);
+		dy *= .1f;
+		if (this->mm & 1) dy *= .1f;
+		if (this->mm & 2) dy *= .01f;
+		float value = this->active->value + dy;
 		if (this->active->SetValue(value)) {
 			this->ParameterChanged(this->active);
 			this->Repaint();
@@ -106,12 +156,14 @@ static void onDisplay(PuglView *view)
 
 static void onKeyboard(PuglView *view, bool press, uint32_t key)
 {
-	printf("keyboard %d %X\n", press, key);
+	PUi *pui = (PUi *)puglGetHandle(view);
+	pui->OnKeyboard(press, key);
 }
 
 static void onSpecial(PuglView *view, bool press, PuglKey key)
 {
-	printf("special %d %X\n", press, key);
+	PUi *pui = (PUi *)puglGetHandle(view);
+	pui->OnSpecial(press, key);
 }
 
 static void onMotion(PuglView *view, int x, int y)
diff --git a/pui/pui.h b/pui/pui.h
index 8185722..6bf6e71 100644
--- a/pui/pui.h
+++ b/pui/pui.h
@@ -13,6 +13,7 @@ struct PUi : PTextures {
 
 	Widget *active;
 	int mx, my, mb, mm;
+	float scale;
 
 	virtual ~PUi();
 
@@ -22,6 +23,10 @@ struct PUi : PTextures {
 
 	void OnDisplay();
 
+	virtual void OnKeyboard(bool press, uint32_t key);
+
+	virtual void OnSpecial(bool press, PuglKey key);
+
 	void OnMotion(int x, int y);
 
 	void OnMouse(int button, bool press, int x, int y);