> ## Documentation Index > Fetch the complete documentation index at: https://docs.holos.io/llms.txt > Use this file to discover all available pages before exploring further. # Authoring courses > Create and edit immersive courses on Apple Vision Pro using a four-level Course → Lesson → Stage → Element hierarchy, with manual or AI-assisted authoring. Courses are authored directly in the Holos Learn app on Apple Vision Pro. Creating and editing courses requires admin or manager access. Content is organized around a four-level hierarchy: **Course → Lesson → Stage → Element**. Build top-down — create the course, add lessons, add stages within each lesson, then populate each stage with elements. ## App tour Browse and manage your courses from the home screen. Create a course manually or generate one with AI. Add lessons, build out stages, and edit course details. Add 3D objects, video, text, images, and recordings to stages. Adjust position, rotation, scale, and other properties of staged elements.