APC40 LEDS Feedback

hey guys. I'm just trying to get my apc40 up and try the scc for the first time. I have to say that it is very confused. Nevertheless, I managed to make a box that I can control. Now I've done it via the .py the LED fedback the clips. That's easy. What I do not manage is to make the clip stop button work. The other LEDs are always flashing red when they are empty. Is there a solution for setting the value to 0? It always sends value 4. The whole APC40 flashes like crazy. Since you get eye cancer;). You can not work like that. Have tried different solutions with reactions but without success. Can someone help me?