Currently "da - Danish" is missing from the OutSystems UI library.
As mentioned in this thread https://www.outsystems.com/forums/discussion/57768/outsystems-ui-allows-for-translations-on-outsystems-ui-widgets/ we can not add this ourselves, so we hope this can be resolved by the OutSystems team.
Damn, I could really use "da - Danish" too
Have other European countries been forgotten as well, or only Denmark? :)