G12 is just a keybind I'll likely never accidently press, which is tied to my Jamba invite macro, on the initial leader toon for each team.

I've been using G13, G14, G15, G16 and G17 for PiP swaps.

G18 is a jamba hotkey to resume follow of the current master (active window is Party Leader and Jamba Master).
I like to manually break and start follow, so do not use strobe follow.

Was thinking of doing some formations on G-keys, mainly spread out type thing.