[Koha-translate] Adding staff file for Basque language

Hello, I have been translating some files in Basque language and I could upload them into the community site but I have realised that there is one missing. At the moment it is only possible to translate these: eu-pref.po eu-i-opac-t-prog-v-3002000.po but there is one missing: eu-i-staff-t-prog-v-3002000.po Could you tell me how to upload this file? Regards, Josu