Good morning Whitesmith,
Yes, its safe to add another move, luckly healing doesn't count toward the UI move limit.. So you are free to add a choice of 1 aoe, 1 special move or creature move in that open spot.. If you wish to add more next time add chiv last and you can fit 3 moves healing and a school of magic on it.. but I would avoid doing that as it bogs down the UI.. but always nice to have the option open... Hope this helps mate.. ya have a grand 4th of July weekend.. =^-^=