Topic: Presetting screen elements
I have determined that you can preset screen elements in setup()
RemoteXY.switch_1 = 1;
RemoteXY.select_1 = 1;
RemoteXY.slider_1 = 75;
RemoteXY.joystick_1_x = 50;
RemoteXY.joystick_1_y = -50;
RemoteXY.rgb_1_r = 50;
RemoteXY.rgb_1_g = 100;
RemoteXY.rgb_1_b = 150;
This allows synchronization of the display to sketch values.
You can not change elements after the device has connected.
Maybe this is a known feature, but if it isn't, maybe it could be added to the online documentation.