diff --git a/doerg/src/net/deertopia/doerg/element.clj b/doerg/src/net/deertopia/doerg/element.clj
index ab85af3..dd52cfb 100644
--- a/doerg/src/net/deertopia/doerg/element.clj
+++ b/doerg/src/net/deertopia/doerg/element.clj
@@ -10,7 +10,8 @@
             [spec-dict.main :refer [dict]]
             [net.deertopia.doerg.config :as cfg]
             [com.rpl.specter :as sp]
-            [clojure.tools.logging.readable :as lr])
+            [clojure.tools.logging.readable :as lr]
+            [clojure.zip :as z])
   (:import (java.util UUID))
   (:refer-clojure :exclude [read-string]))
 
@@ -216,6 +217,18 @@
          rest-coll
          (concat (rest rest-coll) [nil]))))
 
+(defn- =>> [wa-loc wa-loc->b]
+  (if-some [loc₀ (z/down wa-loc)]
+    (loop [loc-read loc₀
+           loc-write loc₀]
+      (let [loc-write' (z/replace loc-write (wa-loc->b loc-read))
+            next-loc-read (z/next loc-read)
+            next-loc-write (z/next loc-write')]
+        (if (z/end? next-loc-read)
+          (z/up loc-write')
+          (recur next-loc-read next-loc-write))))
+    wa-loc))
+
 (comment
   (-> [1 2 3 4]
       (neighbourly-mapcat prn) )
@@ -235,6 +248,7 @@
           #_
           sp/INDEXED-VALS]
          (fn [siblings x]
+           (swap! r #(conj % {:siblings siblings :x x}))
            x)
          doc)]
     @r))