So are the scale controls not working anymore? The factory setup lets you change the scale, and the tonic. These controls might have been damaged by our layout changes.
In EigenD terminology, tonic is the starting note of a scale, from which the scale offsets are calculated. Scalers also have a 'base note' which defines which scale offset to start a keygroup at, for example if your tonic is C and you have a major scale, and the base note is 0, you get the notes C,D,E,F,G,A,B,C.. etc. If you change the tonic to D you get D,E,F#,G,A,B,C#,D ie D major. If instead you change the base note to 1, you get D,E,F,G,A,B,C,D, ie all the notes from C major, but starting from D.
To light up keys you can use the illuminator (back in the commander):
illuminator create
it to illuminator 1 name ify
tau keyboard 1 to illuminator 1 connect
illuminator 1 hey
physical as green choose
Then you can press the keys you want to be lit green, pressing the last one twice to finish. Works for orange and red as well. Remember to say illuminator 1 hey each time, or say illuminator 1 listen if you're going to do several things, otherwise the choose command goes to all agents in the system and that can wreck your setup. You can ensure an empty list of agents by saying 'empty join', then adding just the agent you want with hey or listen. Save often!
The code above might have mistakes, as I don't have a Tau and I'm writing this off the top of my head without my eigenD inatall to hand for testing.