Forgive me if this exists & I haven't found.
I know that I can right-click on the bottom control bar to bring up the MB control menu (which includes the "Locate Playing Track at Source" menu item). I just wish I could use a keyboard shortcut to do so. I often iterate from the mini player view to the main played view and then need to "Locate Playing Track at Source" to bring the song currently being played in the Tracks list (so I can right-click and 'Edit' the current song - to get its info).
In fairness, I can simply 'shift+enter' and I'll get to the currently playing song's properties. And the currently playing song is displayed in the "Playing Tracks" column of the main player view.
Still, it would be nice to have a keyboard shortcut :-)