This is related to the Tags in the Audio Cuts Database.
It allows you to perfome the same change on many Audio Cuts. You can mass change the following:
Delete Tagged Cuts
Change Category of Tagged Cuts
Change Active Status of Tagged Cuts
Change Artist of Tagged Cuts
Change Audio Type of Tagged Cuts
Change Ending of Tagged Cuts
Change Tempo of Tagged Cuts
Change Gender of Tagged Cuts
Change Dayparts of Tagged Cuts
Remove Tags
Check This Box to remove tags after the mass change is done. You should always do this so you don't apply your next mass change to the last bunch of tagged audio cuts the next time you use this feature.