I just started using webflow and this is EXACTLY the feature I'm looking for! Specifically I am building a website for my band and it would be great if the "song" collection had an address to drop in embed soundcloud codes. There are wordpress plugins that will even let you do this very cleanly (so you see - and hit a play button and soundcloud doesn't even pop up, it just pulls the stream from soundcloud).
Not expecting this kind of advanced soundcloud support yet, but being able to drop embed links into collections so we can have our music stream from soundcloud in the website would be FANTASTIC!
Would definitely purchase a paid package if this feature was added