Hi! The Pan/Param button send CC#23 when you push it. There are several other controls that send 23. Request: Change the push CC value to 123, for All Notes Off. It's a great panic button when things get stuck, and making the Pan/Param button push works great because that control stands out nicely.
Ultimately if we could change CC numbers with an interface in UC that'd be great, but right now 123 on the button would be awesome.
BTW, we can't thank you enough for MIDI CC in FP8! You gave us a free JL Cooper unit with a firmware upgrade!