want to hide certain forums as one chooses a language

[helpmehost]

I badly need to do so

when a use chooses a language he only sees the forums written in that language and
not all forums which are not related and useless

I have so many forums in many languages

[Princeton]

not available ..
you will need to create a custom product/plugins

I suggest posting a request in the Modification Requests (Unpaid) forum.