I use Directory Opus 4 for quick file operations, copy, move, delete etc. So I tried to define a few new filetypes for unpacking. I couldn't define new fileclasses because there was no Directory Opus 4 Class file. I found a copy on AmiNet. It seems that DirectoryOpus.CLA was missing in the DirectoryOpus 4 archive, and you have to install it seperatly.I would be nice to have it in the next AmiKit release.
DirectoryOpus.CLA for Directory Opus 4 should be copies into (for AmiKit)