Welcome to the Cove, Chuck!
I've learned to keep an open mind when dealing with electronic systems.
Where software includes a section in its code listing changes and the team can exhibit appropriate reviews and approvals, that has sufficed for the standard's intent because the users (engineers) knew how to find the descriptions and dates of changes. Lots of other options for showing revision control would also work, including making a list of changes to all your documents available in a central place.
As for revision numbers: we see software carry revisions such as Windows 8 or 8.1. Can you do something like that? Just something to alert users that the form has changed. A date can also work.
That said, I hope you don't think you need to revision control every form there is, or for every tiny change that's made. I would use the control plan to decide what form to control. I would consider what the document does, and if the change represents something added or taken away, something done differently or by different specific people.
I hope this helps!