In case there are no explicit key tips specified, ribbon bar assigns numbers to commands/chunks. It works well if number of elements to be accessed by key tips is less than 10 at each hierarchical level. However, when there is more than 10, ribbon bar assigns those above 9 key tips 10, 11 and so on. But these are not accessible by user, as pressing "1" will trigger element with key tip 1.
Maybe making those key tips over 9 be "01", "02", "001" etc., as "0" doesn't trigger any element and pressing 0, then 1/2/... would clearly distinguish the command.
Maybe making those key tips over 9 be "01", "02", "001" etc., as "0" doesn't trigger any element and pressing 0, then 1/2/... would clearly distinguish the command.