diff --git a/src/classes/communication.gd b/src/classes/communication.gd
index f6f9e5f..8198203 100644
--- a/src/classes/communication.gd
+++ b/src/classes/communication.gd
@@ -37,7 +37,20 @@ func _init(core_new: Core, presenloader_new: Node) -> void:
 	sms = core.sms
 	
 	presenloader = presenloader_new
+
+func _process(_delta: float) -> void:
 	
+	# Check for inputs
+	if Input.is_action_just_pressed("fullscreen"):
+		logger.diag("Toggling fullscreen mode")
+		
+		match(DisplayServer.window_get_mode()):
+			DisplayServer.WindowMode.WINDOW_MODE_WINDOWED: DisplayServer.window_set_mode(DisplayServer.WindowMode.WINDOW_MODE_FULLSCREEN)
+			_: DisplayServer.window_set_mode(DisplayServer.WindowMode.WINDOW_MODE_WINDOWED)
+	if Input.is_action_just_pressed("navigate_forwards"):
+		switch_slide(current_slide + 1)
+	if Input.is_action_just_pressed("navigate_backwards"):
+		switch_slide(current_slide - 1)
 	entrypoint = presenloader.entrypoint_node
 	manifest = presenloader.manifest
 
diff --git a/src/userinterface.gd b/src/userinterface.gd
index 4dbc23e..f22b34a 100644
--- a/src/userinterface.gd
+++ b/src/userinterface.gd
@@ -105,6 +105,16 @@ func load_high_quality_wallpaper() -> void:
 	)
 	thread_wallpaper.wait_to_finish()
 
+# +++ processing +++
+func _process(_delta: float) -> void:
+	# Check for inputs
+	if Input.is_action_just_pressed("fullscreen"):
+		logger.diag("Toggling fullscreen mode")
+		
+		match(DisplayServer.window_get_mode()):
+			DisplayServer.WindowMode.WINDOW_MODE_WINDOWED: DisplayServer.window_set_mode(DisplayServer.WindowMode.WINDOW_MODE_FULLSCREEN)
+			_: DisplayServer.window_set_mode(DisplayServer.WindowMode.WINDOW_MODE_WINDOWED)
+
 # +++ unload & cleanup +++
 func unload() -> void:
 	logger.info("Unloading user interface")