right-click options on html tables

I have a client site that has an html table within a div, used as a way to keep scores in a tournament.  At the end of each tournament (every 3 months), the client needs to clear the contents of the scoring tables and start over. He's looking for an easier way to do this (rather than tab to each cell to clear the contents, as he has multiple pages that he needs to do this on).

From within the SimpleCMS editor, when you right-click on a table, it provides a variety of options to delete rows, delete cells, delete formatting, etc. Is there any such way, from with the SimpleCMS editor, that all table content can be cleared (without deleting the actual rows, cells, etc)?

Thanks,
Mitch