Determines the Auxiliary Bus this object is sending audio data to. Auxiliary sends can only target Auxiliary Busses.
To add an auxiliary send:
Note:Auxiliary Busses can be created anywhere in the Master-Mixer Hierarchy as children of an existing Bus or an existing Auxiliary Bus.
Tip: You can drag and drop an Auxiliary Bus object from the Project Explorer to the User-Defined Auxiliary Sends list to quickly add a send.