This is the Picklist View from here you can select which documents to view. The picklist is proceeded by a search so if your picklist is empty do a search first.
1 – Select which documents to view
2 – Click on the checkbox or just the line of each document you want to view
3 – Click the View or Window Button to open the documents
View – Opens the document in the picklist window
Window – Opens the document in a new tab within your internet browser
Cancel – Clears your picklist