How to delete files that have already been encoded?

In the secondt ME Panel top left of program, it lists other files and folders I have previously encoded. How do I get rid of these files now??? Really stupid that you can't just click on the file and hit delete, or select the file or edit, or any other of the selections to find a delete or remove command.

If anyone has figured this out, please let me know. If no one has figured this out--then Adobe PLEASE FIX THIS GLARING SCREW UP11111