Button to selectively include content in an RSS feed When creating or editing some content types I want to be able to have the option to add the content to an RSS feed thats generated by Views.

Is this achievable?
Well, you can just add a field to the content type(s) you are collecting with your view and use that to filter the rss feed. You could easily add a "include in rss" checkbox for example with whatever default value you like.