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The file will open in the Viewer page.
The Documents button will return you to the Documents page from the Viewer Page.
The currently selected file is always highlighted
The Edit List button allows to edit the file list.
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If you click the Inbox folder on the Documents page you will be taken to the Inbox page.
Inbox Page
The Inbox page list all of the files you have opened and uploaded from your email sources.
Drawings
Edit List
The Edit List button allows to edit the file list.