I don't know if the kn7k works any differently, but I just use Memory Banks A-C to load in the styles and use Pattern Copy to switch variations around to Memory Bank A in the position I choose. Then I delete the banks not in use and do all my renaming at the same time. Then I set up the panel memory banks with instrumentation and use the expand mode to set the panel memory to the proper variation I want to use. That way I can use the pedal to switch panel memories and the variations will follow suit. Before I start recording, I will copy the reworked style to disk and reload once more. That will stop any problems with the memory locations jumping around when you record and playback. It's quite easy to "borrow" bits and pieces from different styles to create one of your own unique sounds.