Hi, not sure of the best way to explain this, but for switches 17-21 (upper left), how do I reprogram those with Axis & Ohs? I want to be able to choose one, and then use 13/14 (plus/minus) to adjust the values. Specifically I'm looking to program Com 1 frequencies with the top 2 buttons, 20/21. I'm very new to the product, so sure I'm just missing something, any help would be appreciated.