So I had multiple sectors with 3-5 planets or systems prior to the uprising. Naturally, some of those planets split off to join the machines, causing the sectors to diminish in size (expected this). After reconquering those worlds though, the sectors did not expand to include their original worlds again, so now I have a bunch of 1 planet/system sectors that require additional micro and upkeep for their governor. Any way to reform those sectors, i.e. old 2.1 sector management?