How do I add a document to a completed task? Go to the module  History. Select  Maintenance. Click on  Search  to search for the relevant maintenance task. Once you have found the maintenance task, there are two ways to add the document: Right-click on this maintenance task and select  Add document. Double-click on the line or click  View  and then  New  to add the document. The option  Link from documents... makes it possible to add a document from the module Documents.