Awning confusion

[MikeyInNY]

In 2018 we got a new camper with a power awning. Works great so far. However, my old camper with a manual awning also had a screen room attachment which we used frequently. I'd like to get a screen room for the new camper but have one issue. The screen house panel goes into the track on the awning roller. I can't seem how to access this track on the power awning, it is blocked by the end caps. What am I missing?

[Woodworker]

I had to roll my awnening all the way out then just enough back in. There's a gap in the end cover that will line up with the track in the tube. Looking at the camper mine was on the left side of awnening