1. Do paragraph style as English language.
2. Write a few text boxex with such style but in Russian language.
3. Change paragraph language to Russian for correct spell checking.
Don't know as other, but I see all Russian text marked as error and can do nothing or can't undestand how refresh spelling results somehow native. Save and reload not help too. Only if I choose text manualy and change language to English and after that back to Russian - text marked as OK. Lets imagine that I have manual with hundrets of such text boxes - to whom I should say "thank you"?! I saw something the same only lot of year before in MS Word 95 or earlier.
By the same resons all tables marked as errored. And I don't see any ability change language in all cells at ones. Surprise-surprise...
Found funny and unlogic decision from point of users view. I just add some word in users dictionary and all doc was refreshed. Nothing to say - native system.
In the same time I found that if I add some word to user's dictionar all text box loose red marks - all errors ( I mean not only added word of cource) erased and not refrash back. Error in logic on face.