Yes, that definition is for Machine #2 with my 2 scouts. The hotkey set to a macro on their hotbar with /dance. They both dance synchronously when the physical keyboard #2 is pressed.
When I mouse over, (I think) Synergy is telling each computer that the main keyboard is on Machine #1. When I press 6 from the main keyboard on the 2nd machine, Show Keystrokes says "key name = <6> virtual key code = 54 scan code = 7" but there is no action.
The hotkey definition says <SendPC Local>... my thought basically ends there, they're just not talking >.<