Wing window removal/installation

Both frames are out. I have them disassembled already on the bench. What I need to know is if there is access to the screw and clip with the frame in the door. I thought someone with their door panel off could look to see if there was a hole in the inner door structure to access that screw and clip. Really don't want to wrestle the frame into a newly painted door more times then I have to. Hopefully someone has done this...or tried to do this already.