How to show flat pattern and bends in the same model?

Hello all,

I'm using sheet metal to make a fabric box cover.  There are 2 covers per box that attached to the sides and fold over the top to meet in the middle.  So basically the cover has a 90 degree bend.

What I'm trying to do is to show one cover as open and the other as closed without having to have two separate models of the covers.  Having 2 separate models throws off my BOM.  

Any ideas on how to go about this?

Thanks much!

SolidworksGeneral