too much clutter and wanting an operations screen with more buttons on it, 4 rows having been suggested. To me that cancels each other out. I'm all for removing things that you shouldn't do while driving from being easily accessed from the control screen (like MU'ing for example) but, and this is just my opinion, having every function available on the one screen is probably counter productive.
As with the existing rows of customizable buttons, any position unused would be blank, so you can have it as cluttered or uncluttered as you want.
Some people have a lot of small sound effects that they want easy access to while operating.
For me (and someone like Kevin) these would be on the first page, anything that is configured once would be on the second page. Ie the prime mover start button is on the second page along with the step lights and main light on/off's. Horn, Bell, The Notch up, Notch down, Front Dim, Rear Dim, Ditch Dim, dynamic brake, a few coupler clunks, fans button sound, brake sound, flange squeal, etc would be on the first page.
IDEA::: I Guess the setup buttons could be moved to only be on PAGE TWO, with a lock/unlock toggle button to enable them so there really is no possibility of an accidental press and they would always be out of the way.