Archive Context Menu

Can we edit the "Directory Opus Archive" menu that shows up in the context menus?

Short of that, is there a list of equivalent script commands for each of the menu entries?

Those are variations of the Copy ADDTOARCHIVE command, as described here: ... s/Copy.htm

You can change the menu under Preferences / Zip & Other Archives / Archive Context Menu, but I am not sure if that will do what you want as you haven't said how you want to edit it.