Using Prelude you can transcode your selects to different format (say, ProRes) and into a unique folder (Transfer Clips to Destination) and then Batch Rename all those clips in Bridge. You’d have to transcode though to get the clips out of the AVCHD file structure.
Or you could just transfer your selects through Prelude without transcoding and it will make an AVCHD file of just those selects. I’ve done this for Exteriors, Interiors, Parking Lot, Talent for certain jobs. That way seems pretty easy to keep track of things for me.