Forming tool won't insert into part?? help?

Hello,

This is the first time I have used the forming tool for a sheet metal part.

None of the forming tools will drop and drag from my library onto the work surface?

When I do drag it into the model space i get a message saying "Are you trying to make a drived part?"

Let me know if you have had this problem?

Thanks

Brent

SolidworksSheet Metal