You can install ExifTool Custom Columns 2 script.
I have configured it for you. I have added all IPTC fields.
- Install the DOpusScriptingExtensions.msi
- Unzip and copy the
exiftool-columns.jsfile to%AppData%\GPSoftware\Directory Opus\Script AddIns
exiftool-columns.zip (3.0 KB)
Then these columns become available for selection in DirectoryOpus:
Or in the settings:

