I do not use awning tie-downs, exactly. I found this set up works much better. And in the event of a wind flair-up the awning can still fold upward, but not flip over the top. The dump feature still works excellent, and in the event the awning needs to come "in", it's easy to retract.
I attached 2 awning strap cords to my awning. They slide in the groove and I put 2 of them on, one for each end.
The biggest reason I added the awning straps was so I could reach up and tilt the awning. The awning is so tall, it's impossible to pull it down for a tilt, unless having an 8 foot step ladder. This way, the awning strap can simply be pulled down. It's then fastened to the awning frame and a pin is inserted through the holes on the frame and through the loop of the strap.
If the need arises, simply pull the pin and retract the awning. The straps roll right up with the awning, just like a non-motorized awning strap.
If none of this makes sense, here's some photos. By the way, I've been doing this for 5 years now, when I gave up trying figure out ways to reach the arms of the awning to put it in a tilt position. And, I actually lost one of the knobs, so with it in a tilt position, I can't tighten it any more. The straps hold it at a lean very, very, very well, with no danger of hurting anything.
The awning straps dangling from the awning roller. These never come off. They are always there:
Here's a photo of the awning straps attached to the awning rails on the side of the camper with the awning in a "tilt" position:
Here's a close up of the pin the rail through the awning strap loop:
The best part about it is.... no ladders needed, easy to undo, just pull the pin straight out.
I initially used a tent peg, but the aluminum tent peg was too soft. I then used 2 small Phillips screw drivers, but ended up needed to use the screw drivers. I purchased a portable outside port-a-potty / shower enclosure and these stakes came with it. I never used them with the outside shower enclosure, but the worked perfect for the awning strap holder. Strong, stout and the shape worked very, very well.