ports

Maineah!  I have the sliding piece.  In front of that piece as you look at screen door from outside motorhome, on right side of door is a permanent piece which I have.  To the left of the permanent piece it is open.  Is that how it should be?  The problem is there is no handle on the outside of the screen door.  There is a plastic cylinder that appears screwed in that I am using to grab and open.  If the left side should remain open, all I would have to do is find a handle and screw it to the screen door.  When you said the slider is to get at the outside door knob, the space on the left must be open.  Thanks for your help.  Trying to get everything working so I can get on the road with the rest of you.