OHHHHHHHHHHHH!!!!!!!

NOW I see it! DUH! It looked to me like the "Release Latch" was a control horn.

Not much to elaborate on, You can hinge the doors any number of ways. The biggest thing is to add some plywood "Control Horns" (The black things in the picture with the pushrods attached) at 45 degree angles so the pushrods can open AND close them.