Why is the css read only in RSD when you can go through the list and then display the code - but then not edit it there and then???? This needs to be part of the next update for RSD please - this is a vital element for editing and tweeking.
That may be a feature added in the future. CC didn't want people to be unfamiliar with the app and do things that would break their site. Baby steps to insure success.

It's easy to overlook something you're not looking for.
This is a site I built for my work.(RSD)
http://esmansgreenhouse.com
This is a site I built for use in my job.(HTML Editor)
https://pestlogbook.com
This is my personal site used for testing and as an easy way to share photos.(RLM imported to RSD)
https://ericrohloff.com