diff --git a/source/Ox.UI/js/List/ColumnList.js b/source/Ox.UI/js/List/ColumnList.js
index 4f7db72f..ac359946 100644
--- a/source/Ox.UI/js/List/ColumnList.js
+++ b/source/Ox.UI/js/List/ColumnList.js
@@ -14,11 +14,13 @@ Ox.ColumnList = function(options, self) {
             custom: {},
             items: [],
             list: 'table',
+            query: {conditions: [], operator: '&'},
             resize: null,
             width: 768
         })
         .options(options || {})
         .update({
+            query: updateQuery,
             width: function() {
                 self.columnWidths = getColumnWidths();
                 self.$panel.size(0, self.columnWidths[0]);
@@ -33,8 +35,20 @@ Ox.ColumnList = function(options, self) {
     self.columnWidths = getColumnWidths();
     self.numberOfColumns = self.options.columns.length;
 
+    self.flatItems = [];
+    self.ids = [{}, {}, {}];
+    self.options.items.forEach(function(item0) {
+        item0.items.forEach(function(item1) {
+            self.ids[1][item1.id] = [item0.id];
+            item1.items.forEach(function(item2) {
+                self.ids[2][item2.id] = [item0.id, item1.id];
+                self.flatItems.push(item2);
+            });
+        });
+    });
+    self.api = Ox.api(self.flatItems);
+
     self.$lists = self.options.columns.map(function(column, i) {
-        //Ox.print('SELECTED::', self.options.selected[i]);
         return Ox.CustomList({
                 item: self.options.columns[i].item,
                 itemHeight: self.options.columns[i].itemHeight,
@@ -136,6 +150,40 @@ Ox.ColumnList = function(options, self) {
         return Ox.splitInt(self.options.width, 3);
     }
 
+    function updateQuery() {
+        if (self.options.query.conditions.length == 0) {
+            self.items = self.options.items;
+        } else {
+            self.api({
+                keys: ['id', '_ids'],
+                query: self.options.query
+            }, function(result) {
+                var ids = [[], [], []];
+                result.data.items.forEach(function(item) {
+                    ids[0].push(self.ids[2][item.id][0]);
+                    ids[1].push(self.ids[2][item.id][1]);
+                    ids[2].push(item.id);
+                });
+                self.items = self.options.items.filter(function(item0) {
+                    return Ox.contains(ids[0], item0.id);
+                });
+                self.items.forEach(function(item0) {
+                    item0.items = item0.items.filter(function(item1) {
+                        return Ox.contains(ids[1], item1.id);
+                    });
+                    item0.items.forEach(function(item1) {
+                        item1.items = item1.items.filter(function(item2) {
+                            return Ox.contains(ids[2], item2.id);
+                        });
+                    });
+                });
+            });
+        }
+        self.$lists.forEach(function($list, i) {
+            $list.options({items: i == 0 ? self.items : []});
+        });
+    }
+
     return that;
 
 };
\ No newline at end of file