Use real event items in test email previews

In GiveCampus Events, available controls depend on your permissions and the interface used by your institution.

The generic Outreach preview has fixed example Activities/Add-ons, including a sample T-shirt; editing an event does not replace those static examples. The event template test creates an Example Registrant preview record rather than selecting an existing attendee’s purchased items. No universal select-real-registration control for those tests is available. Validate a controlled registration and its actual confirmation to check real chosen items, and distinguish that from a mock preview; a real registration can affect inventory/payment records.