An option for the S)ave command to save a new, incrementally named copy of the Project.
Sort of like the way AutoSave Vault does, but for our Project itself.
A separate command (from menu or keyboard) or a User or System Prefs that S)ave saves new, incrementally named Project file.
I - and others here - have had the situation happen that when we S)ave, we get the error "File Open" and get a S)ave As box to use a new name (although the old name is not there). Last night that happened, and I typed a new name, then FCP crashed while saving. You know what that means: when you go to open that file, FCP cannot open it!