thank you for the hints. I took a short look again. It seems that there is just the possibility to make the translations in the html-files themselves. Maybe we can do this together step by step, file for file. You can do it in Greek, me in German,:)
Early in the morning I had some more time on looking through the file system. The Architecture is really modular. Very different compared to monowall and pfsense. And the files aren’t under the apache root directory. So I couldn’t find the needed information immediately.