Let me request to provide the help and Users Manual of Japanese language in Staad pro.
Currently It is not existing.
So Japanese user cannot use Staad pro as the Calculation Note for Architectural application to Japanese government.
If there is it, Japanese user will use Staad pro more for Architectural application.
Many thanks for posting your idea. STAAD.Pro has been popular in Japan for some time but there has not been demand for a Japanese documentation, only for the GUI. This will be added to the backlog