etomlins:
First, go to the Layout that has the Drawing you want to reference, select the Drawing, right-click the Drawing and select
Set as Autotext Reference from the pop up list. Next, go to the text block where you want the reference, and where you want the Drawing Number, right-click in that spot and select
Insert AutoText > Reference > Drawing ID ref., add the "/", then right-click again in that spot and select
Insert AutoText > Reference > Layout ID ref. This will create references to the drawing and layout that will update as the drawing is moved (after moving the drawing I needed to Rebuild the window with the text to see the updated references). You can then select another drawing for reference and repeat the process, the first drawing will retain its references. See the Help files: Documentation > Annotation > Autotext > Autotext Reference Drawing for more information.
David