What did I miss?
RTFM! :))
Well, now works fine and I need to see how to add all this to Universal Ctags. Is Geany uses the latest (current) version of Universal Ctags?
P.S. I think maybe try to add special tag ```#Region - #EndRegion```? Lexer supports it. It's convenient for navigation and work with big (large?) files: 
P.P.S. So I'll writing on С soon as big boy :))