I'd like to add some ideas about the action groups.
1. Could we have an extra ui bar that can be minimised like the navball that has the custom action groups as buttons within it? Below the Navball'd probably be favorite.
2. Could we then "Nickname" the custom action groups so that when you hover over the AG button it hovers a text box with the AG Nickname you give it ie, nickname AG-1 Turbines, AG-2 Rockets, AG-3 Nuke, AG-4 Spoilers, AG-5 Drill, AG-6 Refine so AG1 is toggle atmo engines, 2 is toggle rocket/closecycle, 3 toggle nukes, 4 toggle spoilers/airbrakes, 5 deploy drills, radiators, solar/fuelcell 6 Toggle Drilling, Toggle ISRU. etc etc etc ad infinitum
I'd like to forward the motion of the idea already posted to edit the action groups mid-flight for when craft dock etc too.