I have my 2015 312RKDS out right now for 2 weeks at the Lake and was looking at what you are talking about. Looking at the awning adjustments, I do not see a way to do a whole lot. I have a couple of adjustment holes for the bottom support of the awning that is higher but when you roll up the awning, it will be high and bind.
These new power awnings do not have the advantage of disconnecting the bottom support, standing it up and raising it like we could do the older manual awnings.
I feel you here, wondering how to get more height and light into the RV with the awning out. It is nice to be low here in the 100 plus degree Texas sun, but going to Colorado and you want the view in your window with the awning out, its a bummer. IMO.
2015 Sabre Silhouette 312RKDS
2011 Ford F-250 Stock