Add window horizontal/vertical toggle

vimrc

@@ -374,3 +374,20 @@ function! PrintFile(fname)
 	call delete(a:fname)
 	return v:shell_error
 endfunction
+
+function! ToggleWindowHorizontalVerticalSplit()
+  if !exists('t:splitType')
+    let t:splitType = 'vertical'
+  endif
+
+  if t:splitType == 'vertical' " is vertical switch to horizontal
+    windo wincmd K
+    let t:splitType = 'horizontal'
+  else " is horizontal switch to vertical
+    windo wincmd H
+    let t:splitType = 'vertical'
+  endif
+endfunction
+
+nnoremap <silent> <leader>wt :call ToggleWindowHorizontalVerticalSplit()<cr>
+