Well, after two extra days, I found the reason it didn't work. Actually, I hope that my question was not stupid, and the whole member just thought about RTFM.
I solved my problems: 1) How to add an additional shortcut to the localization file "main.strings" and 2) When adding a language, not all text is entered by Xcode into the main.stings file.
1)
. Xcode (). main.strings , ;; .
2)
, , (Attributes Inspector - Block Label). . , - , "" .
, , .