> ## 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.

# Editing a course

> Add lessons, build out stages, and edit course details in Holos Learn.

The course detail view is the main editing hub. It shows the course cover image, title, description, and a scrollable list of lessons below.

## Editing course details

Tap the **edit** button (top right) to update the title, description, and cover image.

## Lessons

Each lesson appears as a row with a horizontal scroll of stage tiles. Use the **New Lesson** button at the bottom to add a lesson.

Tap **...** on a lesson row to:

* **Rename** — update title and description
* **Duplicate** — copy the lesson and all its stages
* **Delete** — remove the lesson permanently

### Lesson toolbar

Selecting a lesson reveals a toolbar with:

| Button     | Action                                                                |
| ---------- | --------------------------------------------------------------------- |
| Add Stage  | Append a new stage to the lesson                                      |
| Shelf      | Open the [element shelf](/learn/tour-elements) for the selected stage |
| Properties | Open the properties panel                                             |
| Save       | Save the current lesson state                                         |

## Stages

Stage tiles show a thumbnail and title. Tap a tile to load that stage into the 3D viewport.

Press and drag tiles to reorder them. Tap **Done** to save the new order.

Tap and hold a tile to rename it, change its thumbnail image, or delete it.