At the time, I had 2 recorders and 2 pairs of mics. My default project configuration was for 2-ch stereo recording from my mics. The 2nd project configuration was for 2-ch stereo recording from my mics, but with the clock synced to another recorder, and the 3rd project configuration was for recording from the soundboard. It wouldn't take much to manually switch between those configurations each time, but I still found it easier to change the configuration by selecting a different project.