by Gus Petrikas
Working with Sheet Metal but you are unable to place a Flat Pattern (Unfolded) view on a drawing, because the flat pattern option is grayed out?
A quick Autodesk Inventor 2016 tip:
This happens because the sheet metal part has not been unfolded, and does not have a flat pattern generated. To do that, simply open the sheet metal part, navigate to the Sheet Metal tab and hit "Create Flat Pattern":