" Hide GUI menus:

" Hide Menu (File, Edit, etc.).
"set guioptions-=m
:let g:toggleMenu = 0
map <silent> <S-F1> :if g:toggleMenu == 1<CR>:set guioptions-=m<CR>:set lines+=1<CR>:let g:toggleMenu = 0<CR>:else<CR>:set guioptions+=m<CR>:let g:toggleMenu = 1<CR>:endif<CR>

" Hide Toolbar (Icons for opening, saving etc.).
set guioptions-=T
:let g:toggleTool = 0
map <silent> <S-F2> :if g:toggleTool == 1<CR>:set guioptions-=T<CR>:set lines+=3<CR>:let g:toggleTool = 0<CR>:else<CR>:set lines-=3<CR>:set guioptions+=T<CR>:let g:toggleTool = 1<CR>:endif<CR>

" open all buffer in tabs/close all tabs
:let g:toggleTabs = 0
map <S-F3> :tab ball<CR>
map <silent><S-F3> :if g:toggleTabs == 1<CR>:tabo<CR>:set lines+=3<CR>:let g:toggleTabs = 0<CR>:else<CR>:set lines-=3<CR>:tab ball<CR>:let g:toggleTabs = 1<CR>:endif<CR>