Please Clarify New Multiboxing Rules

I am aware you are not required to reply, so thank you for taking the time to do so. I take it that your reply means you cannot tell me if “one key press = one action is the rule of thumb” when that one key press and one action are being sent (alone) to an inactive window?

The idea is to have 2 different and independent sets of hotkeys for WoW1 and WoW2.