control the level of send a of a chain in a drum rack

Hi all!

I have tried to reach this parameter using reactions but i can’t find a way to do it..

My ableton project is very simple. I have 1 track with a drumrack on it.

Now i want to be able to control the level of send a of the first chain in that drumrack using a midi controller that outputs values 0-127.

I tried this using a reaction with ‘midi controller is moved’ as a listener.

The reaction itself is:

self.song().tracks[0].devices[0].chains[0].mixer_device.sends[0].value = self.get_value_from_ranges(False, 128, False, 15, 0, 127, 0, 0, 1, 2, False)

I allready spent over 3 hours getting it to work, browsing the forums and asking chatgpt, but no luck so far.

I was using clyphx before and that was working fine to achieve this..