At 7 weeks there should be no need to bring them back in. I would start them in strictly the coop for the first few days to about a week, to help home them to the coop. That'll help finish acclimating them to outside temps too. After that you can simply open the pop door and let them decide when they want to come out.
There's no need to herd them back into the coop if you're away from the house, except in cases of extreme emergency. If the run is predator proof you technically don't even need to coop them up at night, though I'd feel safer having them locked up even if the run is secure.
There's no need to herd them back into the coop if you're away from the house, except in cases of extreme emergency. If the run is predator proof you technically don't even need to coop them up at night, though I'd feel safer having them locked up even if the run is secure.