To attach a document to a Stock Record go to the Navigator Main menu and select Vehicles. In the drop down menu that appears select Vehicle Administrators Toolkit.
The following window will appear:
Search for the required Stock Record. When the Stock Record appears on screen select the Images tab. A window similar to he below will appear:
Documents can be viewed by double clicking in the document list (where it says "Drag file her to upload" - any uploaded documents will be shown)
Documents can also be scanned, added manually or drag//dropped into the list (see here)