You should be able to upgrade things from the yard planer. Because there are sometimes things that you cant see from your view. Also an upgrade for the yard planer should allow us to move towers that are being built.
Anybody else notice that when you are helping someones yard and it shows the circles in the bottom left hand corner of what needs to be helped...when an Ariel defense tower needs to be helped...there is a picture of a level 2 catapult upgrade
What if there was a building shrinker that you put in your yard and it shrinks your towers at different levels so that they take up less space. haha "+" if you think thats a cool idea