Testing special combo stacked (instead of tabbed).

i3/config

@@ -125,9 +125,9 @@ bindsym $mod+Mod1+w split h; layout tabbed
 bindsym $mod+x split h, layout splith, focus right, move left, focus left
 bindsym $mod+Shift+x split h, layout splith, focus left, move right, focus right
 
-# special combo for tabbed split of two windows next to each other
-bindsym $mod+z split h, layout tabbed, focus right, move left, focus left
-bindsym $mod+Shift+z split h, layout tabbed, focus left, move right, focus right
+# special combo for stacked split of two windows next to each other
+bindsym $mod+z split h, layout stacked, focus right, move left, focus up
+bindsym $mod+Shift+z split h, layout stacked, focus left, move right, focus down
 
 # toggle fullscreen mode for the focused container
 bindsym $mod+f fullscreen toggle