Yes the Information on the Hatch Door helped. I installed that 3/4 pipe.
But the only minor problem is, the drawing i received " how to do it "
Showed that Arm with the smal inner arm coming out to the top, in my case,
the arme extend out from the top to the bottom...so it works, but i still
need to be carefull moving around the door.
Beats a 2x4 pice of Lumber !!
Thanks for the help.