"Add archive comment" command

This command is accessible both in file management and in archive management modes. If you are inside of archive, there is no need to select any files, just run "Add archive comment" command using either Commands menu, "Comment" button on the toolbar or Alt+M keyboard shortcut and enter the archive comment in the appeared dialog. If you browse uncompressed files in the file management mode, first select files and folders which will be searched for archives to comment.

Command line equivalents: command "c", switch -z<file>