When enabled, the Funnel Transform accepts inputs from multiple ports and outputs the data to a single port. Use the Verbs at the bottom of its Properties box to add or remove InPorts.
The Funnel Transform works with all types of Signals, but all the ports (except Enabled) should be the same type. To change the port type, click on the port to display the port's properties. Then, click in the Signal Info field to display the Add/Edit Port dialog box. Use the dialog to change the port's name, classification, and properties.