I think I know what you mean. The master remote for the Harman Kardon uses the same button to switch between HDMI 1 & 2. (I hit it once for #1, and twice for #2.) Plus, the front of the AVR has a Source button that arrows up and down to scroll between all the possible inputs in addition to the HDMI's.

Not sure if understand what you mean by "go to Vid 5 and then choose it via the toggle." Do you mean "choose it" by "learning" it? I haven't "learned" any commands yet, and fear it'll erase something or screw something up.