diff --git a/source/Ox.UI/js/List/TreeList.js b/source/Ox.UI/js/List/TreeList.js
index 8246d37b..24580ee7 100644
--- a/source/Ox.UI/js/List/TreeList.js
+++ b/source/Ox.UI/js/List/TreeList.js
@@ -1,17 +1,18 @@
 'use strict';
 
 /*@
-Ox.TreeList <f> TreeList Object
-    ([options[, self]]) -> <o:Ox.List> TreeList Object
+Ox.TreeList <f> Tree List
+    ([options[, self]]) -> <o:Ox.List> Tree List Object
     options <o> Options object
-        data <f|null> data to be parsed to items, needs documentation
+        data <f|null> Data to be parsed as items (needs documentation)
+        expanded <b|false> If true, and data is not null, all items are expanded
         icon <o|f|null> Image URL, or function that returns an image object
-        items <a|[]> array of items
-        max <n|-1> maximum number of items that can be selected, -1 unlimited
-        min <n|0> minimum number of items that have to be selected
-        selected <a|[]> selected ids
-        width <n|256> list width
-    self    <o> shared private variable
+        items <a|[]> Array of items
+        max <n|-1> Maximum number of items that can be selected, -1 unlimited
+        min <n|0> Minimum number of items that have to be selected
+        selected <a|[]> Selected ids
+        width <n|256> List width
+    self <o> Shared private variable
 @*/
 
 Ox.TreeList = function(options, self) {
@@ -22,6 +23,7 @@ Ox.TreeList = function(options, self) {
     var that = Ox.Element({}, self)
             .defaults({
                 data: null,
+                expanded: false,
                 icon: null,
                 items: [],
                 max: 1,
@@ -172,12 +174,12 @@ Ox.TreeList = function(options, self) {
 
     function parseData(key, value) {
         var ret = {
-                expanded: false,
                 id: Ox.uid().toString(),
                 title: key.toString() + ': '
             },
             type = Ox.typeOf(value);
         if (type == 'array' || type == 'object') {
+            ret.expanded = self.options.expanded;
             ret.title += Ox.toTitleCase(type)
                 + ' <span class="OxLight">[' + Ox.len(value) + ']</span>';
             ret.items = type == 'array' ? value.map(function(v, i) {