OK - jargon issue....
I am referring to the "Left Main Panel". The Left Main Panel has display options such as Artist, Album Artist, Album, Genre, Genre Category, etc, etc... These display options are apparently default options - at least, I did not create them.
Publisher is not offered as a display option.
But, Publisher is a field in the data base which contains the specific CD number, for example "London 413 352 2". I want to be able to display and sort my files by Publisher, just like I can already do with Album, Album Artist, Artist, etc. etc.
I know I can add Publisher to the Main Center Panel, but I do not want to do so - I want to display Publisher in the Left Main Panel.
I hope and trust that this explanation clarifies my question.
Thanks,
Art