One-time, per articulator. Two procedures depending on your kit:
Direct for branded articulators (Artex / SAM / Asa), and
Flex for any articulator without brand-specific mounts.
Gemini Calibrator printed and post-processed (Lesson 02). Plaster or 90 Shore A silicone.
Articulator clean and unmounted. Set the articulator's incisal pin to 0 before you start.
Pick your workflow
The video and the wizard switch together when you toggle Direct ↔ Flex.