I just picked up an analog keys (previous A4 owner) and knob cc’s are very easily configured. I was using it to control a shruthi last night (which sits nicely in the open real estate on the panel and sounds great through the a-keys effects). Setting up the 10 knobs for specific parameters was simple (function + external midi). I believe the settings are tied to a kit, which gives you an unlimited number of config’s to easily play with. Overall, I’m really loving the workflow on the keys vs the a4. If you are used to the A4, the integrated keyboard and just a few extra buttons/labels makes it really fast and fun.