So I originally set up my revision as "A" in my early schematic design/setup. Now, I'm getting ready to send it out for review and I want to change it from Rev A to IR for Initial Release. But SWE won't let me edit the revision. I can go to Revision Manager and add a new revision, but it autotragically goes to Rev B. And it won't let me edit the "B". How can I change my Rev from A to IR?