It's not possible at the moment, but it would be good, if we could embed collections into normal folders, or at least could make links to them. What do you think about this idea?
You could make a toolbar button which goes to the collection (e.g. Go "coll://Find Results" as the command).
Then (still in Customize mode), drag the button to a folder to create a .dcf file that can be double-clicked, similar to a shortcut.
Yes, that worked. I'm surprised, buttons can be dragged into folders. Thanks!