Is it possible to control Ableton with Loopy? The fact that you can build your own custom layouts would make for an insane Ableton controller!
I'm not sure if I understand you correctly:
In case if it's the second thing then I rather would suggest you using TouchOSC!
It works on all devices: Mac, Linux, Win, Android, iPad/iPhone – editor AND controller.
You can indeed, with midi actions from LP