These Component Objects provide Pass-Through and Split Pass-Through functions, to aid in the organization of system connections. Pass-Through blocks allow wiring nodes to be strategically placed, so audio or control (logic) signals can be routed in different directions. Split Pass-Through blocks allow associated input and output wiring nodes to be placed in separate locations, with an implicit or 'wireless' connection being maintained between them.
Pass Through and Split Pass Through blocks simply allow custom signal routing, and provide no actual processing of their own. Therefore, they do not have Control Dialog Boxes. Instead, an Initialization Properties window appears, for component definition and customization, when these blocks are placed into the Layout.
see Pass-Through
see Split Pass-Through Input
see Split Pass-Through Output