What it says on the Tin. Just a button at the top or somewhere on the crew list on the side of the screen that lumps all the roles together, or at the very least having the locations save in-between rounds after organizing it yourself for the session.
It could even have a button in the TAB menu that can sort have a spot where you can align the role order.
It would save on the frustration of having to reorganize the crew after every mission launch, as I think it would also help with controlling/organizing bots a lot easier in single player/less than full multiplayer crews.