-nnoremap <silent> <C-W>ch :Qh<CR>
-nnoremap <silent> <C-W>cl :Ql<CR>
-nnoremap <silent> <C-W>cj :Qj<CR>
-nnoremap <silent> <C-W>ck :Qk<CR>
+nnoremap <silent> <C-W>ch :CloseLeftWindow<CR>
+nnoremap <silent> <C-W>cl :CloseRightWindow<CR>
+nnoremap <silent> <C-W>cj :CloseBelowWindow<CR>
+nnoremap <silent> <C-W>ck :CloseAboveWindow<CR>