2 Languages automatic translated?

[MalcomXD]

Good Morning guys!

Ill shorten my thinkings about my need?

Current suggestion
I want to create a forum complete being in 2 languages. Usually there are sometimes topic, like header at hte startpage which aren't translated if you change the main language.
So should be possible to textphrase it also somehow.

The MainChange:
If you create a post you should be able to post it 2 times (first time in your languange), second (just under the first post). First post should be always the chosen language.
Second should be visible only by a flag in the right top of the first post, if you want to see it also: Just click on it. Each Language (German/Englisch) should be a falg if this thread is suported/translated by this postcreator. Clicking at the "flag" at the first post should show up all translated other posts also.

Any ideas how to do it? Any Add-Ons? Anyone who would configure that for me?
(my Forum: www.chrome-network.de)

Sincerely
Explosive