Fresh news for you Epic Games from Russian and Belarusian community. A lot of users said that it TOTALLY DO NOT TRANSLATE THE INTERFACE OF ENGINE. Because it will bring much more problems than solutions. But in general they agree about YES for documentation and lessons.
And I would recommend you to use transliteration method. looks like: ‘blueprint’ -> ‘блюпринт’ and so on
P.S.
Some people says that the blocking of belarusian users was removed… somehow… magic. But the majority says it is not.