I recently received an e-mail in which a user wanted to know what was the usage for a Revit drafting View. So make things easy I have clipped my reply bellow..
A Drafting View:
"...It is a view that can be used for any purpose such as detailing. It does NOT have any relationship to a specific portion of the model, unless you link using a CALLOUT.In this view you can draw 2D objects, insert detailing components which are 2D;Basically anything that is found under the DRAFTING toolbar. You can also use a drafting view to import an existing AUTOCAD drawings such as DOOR JAMB detail for example, and make it part of your Revit document..."
By the way, the Drafting View Command is found under the VIEW tab.