diff --git a/src/desksanity.c b/src/desksanity.c
index d41e7fa..492f02a 100644
--- a/src/desksanity.c
+++ b/src/desksanity.c
@@ -18,6 +18,7 @@ typedef enum
    DS_ROTATE_IN,
    DS_SLIDE_SPLIT,
    DS_QUAD_SPLIT,
+   DS_QUAD_MERGE,
    DS_LAST,
 } DS_Type;
 
@@ -298,6 +299,37 @@ _ds_show(E_Desk *desk, int dx, int dy)
            }
       }
         break;
+      case DS_QUAD_MERGE:
+      {
+         int i;
+         Evas_Object *dmh[4] = {NULL};
+         Evas_Object *clip[4];
+         Evas_Point cxy[4] = {{desk->zone->x, desk->zone->y},
+                              {desk->zone->x + (desk->zone->w / 2), desk->zone->y},
+                              {desk->zone->x, desk->zone->y + (desk->zone->h / 2)},
+                              {desk->zone->x + (desk->zone->w / 2), desk->zone->y + (desk->zone->h / 2)}
+                             };
+
+         E_FREE_FUNC(dm_show, evas_object_del);
+         dmh[0] = dm_hide;
+         for (i = 0; i < 4; i++)
+           {
+              if (!dmh[i])
+                {
+                   dmh[i] = dm_add(desk_hide);
+                   e_comp_object_util_del_list_append(dm_hide, dmh[i]);
+                }
+              clip[i] = evas_object_rectangle_add(e_comp_get(desk)->evas);
+              e_comp_object_util_del_list_append(dm_hide, clip[i]);
+              evas_object_geometry_set(clip[i], cxy[i].x, cxy[i].y, desk->zone->w / 2, desk->zone->h / 2);
+              evas_object_clip_set(dmh[i], clip[i]);
+              evas_object_show(clip[i]);
+              efx_resize(clip[i], EFX_EFFECT_SPEED_ACCELERATE,
+                EFX_POINT(desk->zone->x + (desk->zone->w / 2), desk->zone->y + (desk->zone->h / 2)),
+                1, 1 ,0.8, (i == 3) ? _ds_end : NULL, NULL);
+           }
+      }
+        break;
       default: break;
      }
 }