It can easily be done by one person, but you do it in stages.
Make sure it's loose from the travel locks.
Hook the strap (should be in the center for furling the awning) with the hook/handle you should have and pull slowly. This will unroll the awning fabric, the roller will end up down around waist level.
Hold the roller down while you go to the front or rear arm, you can extend the arm about halfway to where you'll finally want it and then tighten the set screw, then extend the secondary arm so that it pushes against that stop set into the main arm, and tighten its set screw.
The awning will now stay down... move to the other main arm, extend it out to where you want it, tighten the set screw, extend the secondary arm so that it pushes against the stop with enough pressure to hold the awning fabric a little taut. Tighten its set screw, then repeat on the other end that you only extended about halfway in the first iteration.
It does go faster with 2 people, but not that much.
When furling the awning, slide that strap back to the center of the roller. If you're working on your own, lower the arms in 2 stages like you did when raising them. Hold the assembly down by hand until you get back to the strap, then slowly let the spring roll up the fabric. If yours is like mine, the travel locks on each side will bump against the catches and not allow it to roll all the way up, so you have to go to each end to slide the locks up above the catches, get it completely rolled up, then work the locks down on the catches and tighten the set screws
Remember the normal awning advice, leave one end a bit lower than the other so if it rains (or your AC drains improperly) the water will run off instead of pooling. Consider rolling it back up at night or if you're leaving the trailer for a long period, because strong winds can cause problems. The arms of these are much stronger than ZipDee arms, but the attachment points to the trailer are not so wind can still do damage.
Il Carriaggio — 1975 Argosy 24 | Il Progetto — 1976 Argosy 28 Center Bath | WBCCI# 15566
He has all of the virtues I dislike and none of the vices I admire. — Sir Winston Churchill