The option to replace buildings, like in the FoE game (same maker) would be a major stap forward. I started the game about a month ago and was surprised that this function, which is available in FoE, isn't available here, while the game play is based on the same principles.
Having an edit option like CoC, storage,... would be a lot of work, but I expect the replace building option should be less work, as it's already done by developers in the same company. I just had to rearrange and sell several buildings to be able to do so. The swap option would have helped a lot. (even for the one road tile that was in the way when moving a building...)