please add a confirm button for walls

[sweetcupcake555555]

i cant tell u the no. of times i have accidently upgraded my walls and because there is no confirm button there is no turning back. a confirm button on walls would be greatly appreciated thanks

[MediusSyberia]

Lol if you do this please give us another Setting to turn these confirmations on/off. I have 250 walls and do mass upgrades from time to time and if I have to hit a confirmation button 100 times just to upgrade that will be extremely annoying >.<