I'm working on a small plugin that will let you configure custom printjob prefixes. A test-version can be downloaded here: Cura 3.5-3.6:http://files.fieldofview.com/cura/CustomJobPrefix-v5.0.0-2019-10-08T11_42_39Z.curapackage Cura 4.0-4.3:http://files.fieldofview.com/cura/CustomJobPrefix-v6.0.0-2019-10-08T11_42_39Z.curapackage To install, download the file, drop it into a Cura application window and restart Cura.   The custom prefixes are set per printer via Extensions -