diff --git a/anki/decks.py b/anki/decks.py
index 67f4b6457..be53c22ef 100644
--- a/anki/decks.py
+++ b/anki/decks.py
@@ -20,7 +20,10 @@ defaultDeck = {
     'usn': 0,
     'desc': "",
     'dyn': 0,
-    'collapsed': False
+    'collapsed': False,
+    # added in beta11
+    'extendNew': 10,
+    'extendRev': 50,
 }
 
 defaultDynamicDeck = {
diff --git a/anki/sched.py b/anki/sched.py
index 906e5ee9f..2e6a50e95 100644
--- a/anki/sched.py
+++ b/anki/sched.py
@@ -138,6 +138,14 @@ order by due""" % self._deckLimit(),
             g[key][1] += cnt
             self.col.decks.save(g)
 
+    def extendLimits(self, new, rev):
+        cur = self.col.decks.current()
+        for g in [cur] + self.col.decks.parents(cur['id']):
+            # add
+            g['newToday'][1] -= new
+            g['revToday'][1] -= rev
+            self.col.decks.save(g)
+
     def _walkingCount(self, limFn=None, cntFn=None):
         tot = 0
         pcounts = {}