How do I unselect all if I click Firm All or Select All for Release in ASCP Supply/Demand window?

In the ASCP Supply/Demand window there are options to firm all and select all for release. Other than backing out of workbench before saving changes if user accidentally clicks one of these, I do not see another way for user to undo each firm or release selection other than manually unselecting every single checkbox. So if they do this by accident and saved changes we are having to run a script to correct for now. Any help is appreciated!