My DD bought an EZ-up specifically because of other folks having them and their ease of up and down for one person. Being a nice person she loaned hers to a friend who broke a truss arm. It was never fixed and because we have no trees that shade my outside work area and the temps were in the 90's and 100's, I borrowed it to work on the DW's car and found the broken part.
Not having time to order and install an arm, I used some scrap red oak and fashioned a filler for the tube, it fit so tight no screws were necessary. She was suppose to look up, find and order a couple of arms so I could fix it properly. Needless to say she was too busy and never ordered the part, after all, DOD(Dear Old Dad) McGivered it and it works great, so let's just leave it.