Hmm. I think I'm a fan, but I'd have to see and feel it in practice. At first I thought your suggestion would be basically the same as macro'ing, but really, the thing I don't like about macro'ing combos is that I don't have the visual indicator of the dashed yellow line to let me know where my character is at in the combo and whether the second or third ability can still be combo'ed after using a spell or ability in-between. Your suggestion accounts for that--as long as there's SOME visual indication of where I am in a combo (in this case, the mere fact that a new weaponskill icon has appeared in the same place where Heavy Swing was a moment before), I'm happy. Could be a good way of opening space on the cross-hotbar for controller play, where 9 of my 16 open slots on Set 1 are occupied by combo moves and I have to macro spells/abilities onto the remaining slots.