Step 1: Login to your HQWebinar V5 Dashboard and click on the Edit button on the Webinar for which you want to register the user.
Step 2: Select the Registrant tab from the top bar and click on Add Registrant.
Step 3: Enter the Name and email address of the registrant and click on Save Registrant.
Step 4: All the registrant's details will reflect on the list as shown in the attached screenshot.