I like that it's very easy once you're logged into site A (where users are creating their documents) then click over onto Site B where they can log out of there account/profile without having access again until after approval from legal department or other parties have been made - this helps with keeping track who has what document open at any given time which reduces risk if someone leaves before approvals etc were completed as well makes sure noone else gets hold off something important whilst another person was reviewing them! It also allows us more control when we do receive an email notification about changes being done by others so our team don't need be constantly checking back every few minutes looking through emails just waiting till everyone logsout!!