Add a button to remove all Fail strategies from the databank.

The advanced testing is great and it would be even better if there was a button on the Retester -> Results window to delete all strategies that fail the restesing filters that would be fantastic.  Please only delete them from memory, not from the storage drive. I have over 200,000 3.8.2 strategies to test and am analyzing 5,000 strategies at a time. With a 70% failure  rate, deleting 3,500 or trying to save 1,500 one check box at a time is overwhelming.