After having read well before posting, I get the impression @JH-2 that you would want the features you describe as "very comfortable" to be in the Kemper remote.
Might I suggest that that would be a discussion point for "future features" and/or "requests"? @Grooguit suggests an alternative, which is the BeringerFCB1010 with the Uno for Kemper chip. This is also "future safe" since its software update also includes the "morphing" capability discussed in other threads.
It so happens I have such a controller, which I got new before I got the Kemper Foot Controller. I would gladly let you have it for 100 Euros, since I know it works well.
Just let me know if you wanna go... to that home out on the range... they gotta lotta nice...