You can translate English to Japanese or vice versa in this studio.
If you are translating Japanese to English for people in this studio be sure to include both Japanese letters and the english spelling of the letters.
I made a bunch of other studios that you can use to translate
Main Studio: https://scratch.mit.edu/studios/1414900/
Here is how to do it:
Go to one of the studios (including this one) and comment something you want to be translated. If there has not been a lot of activity recently comment on a persons profile who translated something before to let them know you want something translated in the studio.