Thread:Support/Gamepedia

What if I want to translate system messages from Gamepedia wikifamily? Some system messages not exist at Translate Wiki. Can I add this messages to Translate Wiki, or I need to add this as New Project? Or maybe best way is translate system message locally, for example I already translated System Messages at Terraria Wiki into Russian. But this messages displayed only in Russian Terraria Wiki. What if I want see translated messages in another wikis, for example in Minecraft Wiki. What I need to do?