FF7 Rebirth has no shortage of side quests, but it eventually reaches a point where it's impossible to finish up any that haven't been completed.
So let’s say you choose Reset All Quest Data and then complete five side-quests before jumping to another chapter. If you want to keep those five in a completed status, leaving the rest unfinished, then select “Retain…” Which option is best for going back to mop up leftover quests?