--- a/taskswitcher/server/inc/tsmodel.h	Mon Sep 13 13:26:33 2010 +0300
+++ b/taskswitcher/server/inc/tsmodel.h	Mon Sep 20 10:22:22 2010 +0300
@@ -36,6 +36,7 @@
     virtual TTsModelItemKey KeyL( TInt aOffset ) const = 0;
     virtual TBool IsActiveL( TInt aOffset ) const = 0;
     virtual TBool IsClosableL( TInt aOffset ) const = 0;
+    virtual TBool IsMandatoryL( TInt aOffset ) const = 0;
 
 protected: //operations execution
     virtual TBool CloseL( TTsModelItemKey aKey ) const = 0;