...just an idea for the (far) future and a follower TX for DC/DS-16:
What about a small display below every switch, which shows the switch-lable - that means the function of the switch in the actual model?
Sometimes it is hard to remember which function was programmed on which switch. With a display below the switch and the possibility for the user to define the lable model-specific, one could "read" the actual function of the switch.
I guess that would be rather unique as well as very helpfull concerning a good user-interface.
Kind regards and thanks a lot for all your efforts in research & development!
Kai