Im really having fun sending my KPA out to a pair of Powercab +'s, and then controlling the KPA and what speaker simulation I want with both the Kemper and Helix Editors!!!
I just turned off the Cab on the KPA and let the PC+ be the Cabs (and Mic's and distance per Mics). Then using both the Remote on the KPA and the Controller on Helix, I can change settings by a push of a button! It sounds really nice to my ears too- what fun !