Function to cycle state of laststatus setting (multi-window, never, always)
" toggle laststatus
function! ToggleLaststatus()
if &laststatus == 2
set laststatus=1
echo "status line: multi-window"
elseif &laststatus == 1
set laststatus=0
echo "status line: never"
elseif &laststatus == 0
set laststatus=2
echo "status line: always"
endif
return
endfunction
nnoremap <f3> :call ToggleLaststatus()<cr>
vnoremap <f3> :call ToggleLaststatus()<cr>
inoremap <f3> <c-o>:call ToggleLaststatus()<cr>