At the moment, we currently only support Versions linked to Shots, Assets and Playlists within Screening Room's column browser. For example, you can't currently navigate to Versions linked to custom Entities or directly linked to Sequences but would need to add these into a Playlist to navigate in the column browser.
Please add your support to this feature request if you'd like to be able to define the structure of the column browser to match your Entity hierarchy.
Acts > Sequences > Shots
Episodes > Sketches > Sequences > Shots
Projects > Sequences