Sandi:
Don't let any of this intimidate you. There is nothing complicated or exotic about any of these components. They are all very simple construction and in many instances crude by my personal standards.
They use fabric and foam to hide their lack of quality and the over abundance of staples and self tapping screws used to attach various items.
Take it apart, decide what works for you, fix what you find that you don't like and put it all back together.
Come and spend this coming Winter in Mesa AZ and I will give you a hand!!!
Mike
Attached is a picture of my new trim piece. The dark section is just a shadow. We have removed all of the factory fabric from the coach. We like it better now!