+ void renameBlockOrGroup(AbstractBoxItem* item);
+
+ // interface ops
+ /*!
+ * \brief connectInterToGroup
+ * \param item item is always owned by a BoxItem
+ *
+ * This method is called only when the user right clicks on an InterfaceItem (that belongs
+ * to a BoxItem and if it is NOT connected to an InterfaceItem of the GroupItem) and chooses
+ * connect to group in the contextual menu.
+ * Thus, parameter item is always owned by a BoxItem
+ */
+ void connectInterToGroup(InterfaceItem* item);
+ /*!
+ * \brief disconnectInterFromGroup
+ * \param item item is always owned by a BoxItem
+ *
+ * This method is called only when the user right clicks on an InterfaceItem (that belongs
+ * to a BoxItem and if it IS connected to an InterfaceItem of the GroupItem) and chooses
+ * disconnect from group in the contextual menu.
+ * Thus, parameter item is always owned by a BoxItem
+ */
+ void disconnectInterFromGroup(InterfaceItem* item);
+ /*!
+ * \brief removeBlockInterface
+ * \param item item is always owned by a BoxItem
+ *
+ * This method is called only when the user right clicks on an InterfaceItem (that belongs
+ * to a BoxItem and has a multiplicity > 1) and chooses remove in the contextual menu.
+ * Thus, parameter item is always owned by a BoxItem
+ */
+ void removeBlockInterface(InterfaceItem* item);
+ /*!
+ * \brief removeGroupInterface
+ * \param item item is always owned by a GroupItem
+ *
+ * This method is called only when the user right clicks on an InterfaceItem (that belongs
+ * to a GroupItem and if it is connected only to an inner interface) and chooses remove in the contextual menu.
+ * Thus, parameter item is always owned by a GroupItem
+ */
+ void removeGroupInterface(InterfaceItem* item);