I love this thing so far, but there is something that still eludes me. On everything I've ever had, you can switch performances (registrations) without altering the currently playing rhythm pattern (or style). I can't seem to lock out the command to change patterns on the BK. I can lock tempo, voice change and lots of others, but I want to be able to keep a pattern running and call up new sound combinations. Seems like old news for arrangers, right? Everything does this. What am I missing?

Every time I select a performance, a new (previously assigned) rhythm/style is selected. Hmmmmmm .... anyone?