The Quick Access Toolbar allows the user of quick commands such as Save or Undo. 

New

Creates a new xpdrainage design.

Open

Load an existing xpdrainage design file.

Save

Allows the Site to be saved to an XPDX file.

Undo

Allows the last input or action to be undone.

Redo

Allows the Undo of the last input or action to be re-performed.

Customize Quick Access Toolbar

This option allows the toggling of display icons for the New, Open and Save Quick Access commands, as well as allows control of show/hide Ribbon and the location of the Quick Access Toolbar.