I am a new keeper and have 2 hives that are 10 frame mediums with brand new frames and the plastic foundation dipped in wax. It seems the bees aren’t too willing to work outwards so the outer 2 frames on both sides aren’t really touched. I did another medium above the one with the NUC frames and they seem to be drawing out that comb albeit slowly and again in the center. Will they eventually, as numbers increase, build out all of the frames. These will basically be my brood boxes. I am feeding sugar syrup to provide the resources for them to build and they are. I’m just curious about the outer frames. Thank you.