Ok, I found the solution
Simply just insert two languages. English and one you want to translate.
I control the untranslated variable and set two translations: one for English and one for the language you want to translate. This will enable the multilingual feature and will create the variables on the language files that will be exported.
And importing it on other forums will remain the same
No, it does not work...
EDIT: The problem is not the variable itself, which is created and remains the same from one installation to another. But of the Administration Panel that not read the variable until it is rewritten. In this moment the old variable that it is imported and It is overwritten and is read.
EDIT2: I found the problem:
This is the menu table in a forum where the 3 items were translated
Instead this is a forum in which one item has been translated
I believe that this "problem" is repeated in all the other items that you can not translate
Would not it be simpler indentificarle all with the language variables? In this way it would solve the problem at the start.
At this point, is not it easier to identify your entries via variables? As he was already on wbb4.x?
It is not a difficult fix. Just replace the db entries with variables and add these variables in language file.
I think it is the best solution for everyone.
In this way those who want to maintain a single language can do it and will have everything translated into your language. And those who want to deploy a site in multiple languages can also do it without any problem.
Alexander Ebert Tell me what you think. I will never be arrogant, it is advice that could make life easier for everyone. I am also willing to help you in case.