Probably as a new user, you are queries about some very initial operation about ZW3D, here are some youtube videos that can be helpful

ZW3D CAM Workflow: https://www.youtube.com/watch?v=fI0Tuk6B7Tk
ZW3D CAM UI: https://www.youtube.com/watch?v=APy-BBY4czY
ZW3D CAM Mouse Control: https://www.youtube.com/watch?v=Tbsk-1PpCrQ