let g:UltiSnipsJumpForwardTrigger="<c-b>"

let g:UltiSnipsJumpBackwardTrigger="<c-z>"

" Custom completition like SUPERTab

function! g:UltiSnips_Complete()

    call UltiSnips#ExpandSnippetOrJump()

    if g:ulti_expand_or_jump_res == 0

        if pumvisible()

            return "\<C-n>"

        else

     return "\<TAB>"

        endif

    endif

    return ""

endfunction




au BufEnter * exec "inoremap <silent> " . g:UltiSnipsExpandTrigger . " <C-R>=g:UltiSnips_Complete()<cr>"