how do I run a sheet metal bend past edge but keep the flange same length

I been looking around trying to see if anybody else has solved this to no avail. that is why I am asking...

How do I run a sheet metal bend past the edge with out making the flange longer?

I don't want the bend relief in the part I want the bend to continue and bend part of the angled/joining edge

Refer to the picture

Thanks

-Sam

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