A feature similar to what I had on the BOSS multiefffect GT-100 would be nice to have on the Kemper. The possibility to increase/decrease the output volume by +/-10% by klicking on a button.
This was useful when someone asks "Guitar louder!!!" and you don't have free hands to rotate some knobs and the mixer guy is not reactive.
There are two buttons on the remote I never use, the tuner and the looper. I could use these two for this or better let the user customise according to their wishes.
The amount of increase 3%, 5%, 10% can be also configurable for each rig.