Class:                  modelclass
Superclass:             icclass
Include File:           <intuition/icclass.h>

A class of OM_UPDATE forwarding objects that have multiple targets.  In
addition to the features the modelclass object inherits from icclass, when
a modelclass object gets an OM_UPDATE message, it forwards that OM_UPDATE
message to all of the objects in its broadcast list.

New Methods:
------------
None.

Changed Methods:
----------------
 OM_ADDMEMBER    OM_REMMEMBER    OM_DISPOSE    OM_NOTIFY/OM_UPDATE 

Attributes:
-----------
None.