Cloud based storage: where in File dialog?

I use OneDrive and DropBox for storage, but tmk they don’t show up in any of the File dialog lists, and I have to go digging for their… link?.. in my user folder. (W10)

  1. Is there any way to get such resources to show up as ‘normal’ drive volumes?

  2. Or would this be a Feature Request?

Can’t you just make a bookmark?

Is that the same as a “Favorite”?

I guess I’ll use that.