I can't find a "suggestions" forum, so I take the liberty of posting this here. It is a small thing, maybe, but I have found that terminology is important to learning.
In the manual:
"File Commands - Predefined
The File Commands are the workhorse of Directory Opus. They are commands that operate directly on the files or folders, letting you copy, move, delete or rename them."
I think it would help if this was called "File/Folder Commands – Predefined" instead.