There are 4 videos to watch. They are all required for you to view, and give you the needed information for serving. The videos are 16 minutes in total, so thank you for taking the time to watch them and being prepared to serve.
https://vimeo.com/1176983077?share=copy&fl=sv&fe=ci
https://vimeo.com/1176983565?share=copy&fl=sv&fe=ci