Can both seat activation buttons 1 and 2 be set for each remote? That is, if I set 1 and 2 for myself, can my wife - using her remote - then set those buttons for her own positions? So, in essence, with two remotes there can be four seat settings with 1 and 2 (two each). Or, can we only set (choose) one button for ourselves; like she takes 1 and I take 2, and we both share the exit button's position?