I am a huge fan of the CTRL settings "maintain at least X rebuilders on each planet" and "auto-FRD rebuilders", and the fact that command centers leave remains to be rebuilt. Super helpful to let me focus on more interesting things. However, if you lose a planet's command center, it's quite likely that any rebuilders you had on the planet died along with it, meaning you're going to have to move some rebuilders in from elsewhere to rebuild each planet (this can be tedious when you lose a whole bunch of planets). Because of the delay in allowing you to rebuild command centers, I often have to check any destroyed planets carefully to see if all rebuilders died out, and if so move at least one there from a healthy planet.
I wish there were a good solution to allow planets to always rebuild automatically, without manual intervention after each raid.
Is it possible to make the "maintain at least X rebuilders/engineers" rebuild them from healthy planets intended for planets that can't build at the moment, if the player has ever owned a command station at that planet (the rebuilders should be created with move orders for that planet)?
Or, can we make rebuilders practically invincible on player owned and neutral planets (but vulnerable whenever they are on an AI-controlled planet, I think that's important to prevent OP beachhead tactics)?
Or does anyone have a better idea for how to solve this?