Keyswitches only on white keys

I’m really new to Scaler and I try to use a Novation Launchpad to handle different things.

I don’t understand how or wether it’s possible to change the binding in Scaler 3.2. In especially the keyswitches on the modal interchange window. I need to use only the white keys (whole notes) to switch from one mode to the other, and no black keys.

Can you help me ? Thanx !