No, thats not what I meant, sorry for the confusion.
I do change the revision number in the box, I just don't have room to explain what the revision change is.
Like on shop drawings, it has a revision history section and shows the latest revision number and a brief explanation of what the change is, thats what I meant by not putting the explanation on the WPS form.
As far as the actual revsion number, that does get changed.
Chris