Hey, can someone help me. I am trying to make vim-fireplace omnicomplete work with you-complete-me in way that it shows completion automatically without me firing C-X C-O keys? Does anybody use it that way ?

I do, but not with YCM. There's other small plugins that automatically type c-x-o for you

(Can't remember the name now)

@dominicm thanks I found it https://github.com/vim-scripts/AutoComplPop gonna try

That's the one

supertab? https://github.com/ervandew/supertab