Personnalisation CSS V4

Since version 4, it is no longer possible to both integrate an RSS feed (URL address field), and obtain access to the RSS feed customization fields.
It’s either the option with the URL field, and xibo’s default customization, which is rather limited, or the “embedded” widget with customization fields (HTML, CSS, JAVASCRIPT, HEAD) but which doesn’t allow you to target a precise URL address.
How can I integrate an RSS feed and customize it graphically at the same time?
I’ve read that version 4.0 removed these options, and that it’s possible that version 4.1 will make them available again, or through a .

Thanks for your help.