Revision Control enables global control of sheet numbering and the drawing revision values shown in a Titleblock.
The values are stored in the custom properties in a Sheet Set, so there are no extra files required.
The advantage of using 'Sheet Set Custom Properties' is to store revision values, that they are easily accessible through fields and can be accessed and edited instantly without opening multiple drawings.
Revision Control will add the custom properties it needs to an existing Sheet Set.
It will provide an interface that displays the revision data for all sheets, where the user can select the sheets to increment, decrement, renumber, or make global edits to other custom properties.
You can try 'Free 30-Day Trial' with full functionality, after that subscription is required.
Check out this feature video - https://www.youtube.com/watch?v=eTxeFwS8rRU&feature=youtu.be