Work on multiple change requests simultaneously

[jchatfranklin]

Here's what I want to do:

Open a change request. Change 5 pages. Send this change request to Reviewer A.
Right away, open a new change request. Change 5 different pages. Send this change request to Reviewer B.

Each reviewer should see and be able to comment on only their respective changes, i.e., Reviewer A should receiver ONLY his changes, and Reviewer B should receive ONLY her changes.

I can't see how to do this in the app. Please advise.