I am feeling a bit stupid here, since i cant find the Fixture Editor. I read some tips saying it should be in the windows menu, but it looks like this for me:
Hey! The in-app Fixture Editor only exists in Beam for Live, the application that runs next to Ableton Live. Beam for Max doesn’t ship with a Fixture Editor.
Instead, you can use the online fixture editor here: https://support.showsync.com/fixture-editor
Hope this helps!
Hidde