I've never used column browser because it seems to have a bug. I have it configured to show 2 columns, Genre and Title, when I click a Genre the main window populates with all the songs of that Genre from my current Auto Playlist. But when I click a Title the main window only populates with one song. I verified that my auto play list has many versions of the song Title I clicked. For example I have about 120 versions of the tune Route 66 rendered by the Auto Playlist (my auto playlist selects all songs 4 stars or more). But when I click Route 66 in the column browser I only get one of the 120 versions of Route 66 in the main window queried back. Is this correct? Maybe I'm not using this correctly or dont understand what it does.
Now I just noticed that if I select Entire Library in the main tree and try to use the column browser tool with Title at all, MM4 hangs, it locks up and I have to kill the task. (I have approximately 150,000 tracks in library). It does not lock up with Auto Play lists that generate about 5000 selections however. So there seem to be two bugs when using Title. I'm trying to find an easy way to "View more of same Title" or do quick Title selecting from a Title index that targets the current Auto Playlist songs. I have very few songs where the title is unique, just about 90% of the 150,000 songs have a minimum of 10 versions of the of the same title. I was hoping Column Browser would let me find a song Title quickly by listing all the covers of that title. But it always gives back only one row.