LrC Import Window has no Filename Text Editor

I only recently discovered the LrC ability to edit filenames during import.  However, LrC has no Filename Text Editor in the right pane of the import window. The two panes available are File Handling and Apply During Import.

Adobe Help keeps referring to “Restoring Filename Editor in Adobe Learning Manager Desktop Application” but I have never used Adobe Learning Manager! Or “In Adobe Learning Manager, if the filename text editor is missing in the import window, it may be due to missing instructor assignment for the course instance” which makes no sense to me. 

Ok, I’m a newbie to LrC. Maybe I have missed something, or my search input is misworded but is there a human out there who knows how to solve this dilemma? I really could use this feature in  LrC.  

Thanks.