Another Interesting thing to note is how you can use revisions to track changes, even if these changes aren't going to be issue as an "addendum" (in other words, you are re-issuing the whole construction document set).
First, you need to set your project browser to filter by Revision. Essentially, you can set it to group sheets that have been "changed" and sheets that haven't.
Then, all you need to do is modify your titleblock family>Revision Schedule, and hide thall of the columns but one. I usually leave the date column visible, since it will require that one column be visible.
Now, go back to your project and modify the Project Revision settings, and just make sure the date field is blank, that way nothing will show up in your titleblock. Also, make sure the visibility of the clouds and tags for the Revision # you are using is turned off.
Doing this will allow you to cloud things, without having to delete the Revision schedule from your sheet family. This will help track the changes you have made, and also allow you the capacity to easily turn everything on, if it ends up being decided to issue everything as an addendum (now you don't have to go back and remember what you changed...).
Food for thought. Hope this helps.