Marking and Viewing a Document
To select (or mark) a document, hover the mouse cursor over the left half of the document icon and left mouse click.
Multiple documents can be selected at once.
To unselect a document left mouse click on the left half of the document icon again or click on the orange "x" only the top of the screen.
To mark and view a document, hover the mouse over the right have of the document icon and left mouse click.
The current document in the view will have a small yellow square in the bottom right corner of the document icon.
The document will appear in the document viewer.