why not sacrifice the 25th key, cut it from keyboardlayer, give it the right midi ch and ccs and you have a single modkey for something?
but u are right, vote for implement shift ccs! would be a nice feature
btw how can u even use this as a midi controller with this cc-return-bug? sometimes it does return, sometimes not... everytime, i try to use it as a controller, it ends in a mess
hope fw update will arrive soon!