i dunno about you guys but i always found it really frustrating when the enemy does an airstrike or something when you arn't looking at your base, and you need to move the repair cursor over every building to see which 1's are damaged and which arent, so i propose this:
A base maintanence button, you click this button and all damaged buildings begin repairing in 1 click, whats more is you don't need to return to your base to do this. perhaps as a balance of sorts it should cost slightly more like 5% more credits overall or cost a certain amount per building as a base rate, that way you will be encouraged to use the regular repair button for more trivial base repairs.