Roll on a flat between two lines?

I have a flat pattern that has a roll operation called out for it.  I'm trying to reproduce it in Solidworks now, but the roll is stopped at a pair of lines on the drawing, reached before the edges of the part.  Is there a way to get Solidworks to only bend (roll) a certain section of a part that is not an edge?
As a note, the edge view of the profile is a U shape, but the side view has cutouts and additional bends for the edges.

SolidworksSheet Metal