LabVIEW controls can be registered with the LabVIEW Automation system, which makes them available in SeqZap as a single name. The list of registered controls can also be cached so the test can be written without requiring the LabVIEW application to run.
When running on LabVIEW Real-Time and similar environments, the VIs can not be interactively browser, for these places it is necessary to register the controls which SeqZap should be able to communicate with by registering them.