The Pipe Connection Zone sheet in the SpaceMgmt.xls workbook defines zones that will have routed objects. A connection zone serves as a placeholder for route (pipe, cable, and so on) that has yet to be modeled.
In addition to the common properties discussed in Space Management Sheets, the following properties can be defined for a pipe attraction zone:
Specify whether the zone allows routing through it (1) or whether the zone allows routing up to it, but not through it (0).
Specify the side of the zone through which you want to route.