Under "Folder Options/File Types/Advanced/Edit File" I see listed "Folder"
and "File Folder"; both let me add new commands, which then appear on
Right-Click context menus, but then I can't Edit or Remove those commands. I
can Set Default for any of them, but can't otherwise modify them.

If these are not intended to be modified, why can I click on New... and Set
Default, while Edit... and Remove are greyed out?

--
Scott Leslie