diff --git a/browser/configurator.py b/browser/configurator.py
index 5401438..b8ab791 100644
--- a/browser/configurator.py
+++ b/browser/configurator.py
@@ -136,7 +136,8 @@ class MacroViewProperty(ViewProperty):
 
     def setParams(self, params):
         params = dict(params)
-        self.name = params.pop('name', '')
-        self.identifier = params.pop('identifier', name)
+        self.slot = params.pop('slot', '')
+        self.name = params.pop('name', None)
+        self.identifier = params.pop('identifier', self.name)
         self.template = params.pop('template', None)
         self.params = params
diff --git a/browser/controller.py b/browser/controller.py
index 6b54462..d689d1c 100644
--- a/browser/controller.py
+++ b/browser/controller.py
@@ -63,7 +63,7 @@ class Controller(object):
             configurator = conf[1]
             for item in configurator.getActiveViewProperties():
                 if IMacroViewProperty.providedBy(item):
-                    self.macros.register(item.slot, item.idenitifier,
+                    self.macros.register(item.slot, item.identifier,
                                          item.template, item.name,
                                          **item.params)
                 else:
diff --git a/tracking/README.txt b/tracking/README.txt
index 29b9f35..59c1885 100644
--- a/tracking/README.txt
+++ b/tracking/README.txt
@@ -78,6 +78,10 @@ The tracks of a tracking store may be reindexed:
 
   >>> tracks.reindexTracks()
 
+  >>> tracks.removeTrack(t4[0])
+  >>> tracks.getUserTracks('a001', 0, 'u2')
+  set([])
+
 Runs
 ----
 
diff --git a/tracking/btree.py b/tracking/btree.py
index 8928b93..93af357 100644
--- a/tracking/btree.py
+++ b/tracking/btree.py
@@ -196,6 +196,14 @@ class TrackingStorage(BTreeContainer):
         self.indexTrack(trackNum, track)
         return trackId
 
+    def removeTrack(self, track):
+        trackId = str(track.__name__)
+        trackNum = int(trackId)
+        for attr in self.indexAttributes:
+            self.indexes[attr].unindex_doc(trackNum)
+        if trackId in self:
+            del self[trackId]
+
     def indexTrack(self, trackNum, track):
         ixd = track.indexdata
         for attr in self.indexAttributes: