focus cycle between specific windows
User's guide has these lines as an example :
# Get me to the next open VIM instance
bindsym $mod+a [class="urxvt" title="VIM"] focus
In my case, this always takes me to the LAST vim instance rather than the NEXT vim instance.
I would like to cycle between vim instances using a keybinding, is it possible to implement this with only config (no scripting)?