Custom Mapping Xone K3 Ableton for Live Set

Hey,

I just bought CSS3 and already spent a couple of hours trying to figure it out. I am a live act and want to create a custom script to use the Xone K3 to control Ableton. Here are my questions for now (I will edit and update along my exploration):

1. How can I use more than 4 return channel? Can I say that the Layer 2 only changes the upper encores and knobs, but the rest stays the same? So I could use up to 12 return channel with the 3 Layers? How can I implement the Layer and Shift function?

2. If I use two Xone K3 controllers, how can I connect them, so if I scroll on one, it also scrolls or updates on the other one (session box, faders etc.)?

Thank you so much for your help, I really appreciate it and do hope someone can make this work. I’d love to keep CSS3.

Best regards