I love the upgradein a row of walls at a time but thought it would be better if you upgraded the lowest walls first and what I mean by this is that if you have a row of walls highlighted and there are 5 lv5 walls and 6 lv1 walls the price to upgrade reflects upgrading all the walls by 1 level I think an correct me if you don't that it should be the lowest walls in that row only so it would only upgrade the lv1 walls in that row until the caught up with the rest thanks for reading
