I just spent two hours naming patches, assigning IA presets and then while I am trying to figure out the architecture of your button assignments, I changed some things and instead of UNDO, CANCEL, STORE?, RETURN, SAVE? or any way to revert, I have to use Done. Sadly, now it will be quicker to do a factory reset than try to figure out how to undo everything when I'm not even sure what I did wrong. I know, RTFM but the manual doesn't go deep enough by far (see below). I don't understand how you think this is ok. Nobody else I know if has this "feature". To overwrite everything is nuts. Which brings up manuals. Write your manuals with examples. Your programming structure is the least user friendly piece of gear I have ever seen. Please write a separate manual for the GT10.