Hello Ja,
"The only way to achieve this is using properties for two of them, or is there any other option?"
I don't understand what this mean... ?
any how, If you are taking about master data loading from BW, then we have an option to choose description whether it is short, medium, long..
while running the DM package in the set selection go to language tab. for reference see the below image...
Regards,
Saida Reddy G