I often have a need to open each email in a folder, to test, tweak a link that is not in a module, or otherwise work on a project. It is a multi-click process to get to the next and succeeding emails in a folder that can contain dozens of emails.
The current system requires you go out of edit mode, then wait for the folder to display, then click on the next email, then wait for the edit screen to be served out and display.
It would be convenient and save a lot of time if we could have a way to navigate to the Next or Previous email in a folder directly from the edit screen.