Add New Port to Module
To add a new port to a module, place the editor cursor on the module name, Right+Click and select Refactor > Add port.
In the Add port wizard you can tune the name, direction, type, and width of the new port.
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Click Ok to perform the refactoring or Preview to see the changes that are about to be performed in the source code.
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Note
An empty port connection is added to all the instances of the selected module along with a FIXME comment which shows up in the Tasks View. See Track Tasks using TODO Markers
Tip
In the Preview page you can select what changes should be performed.