> ## 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.

# Staging elements

> Add 3D objects, video, text, images, and recordings to stages in Holos Learn.

The **element shelf** is a browser of all assets available to add to a stage, including 3D objects from your organization's library, as well as ad hoc content like text, images, video, and recordings. Open it from the lesson toolbar using the shelf icon, then tap an asset to stage it.

## Content types

| Type          | Description                                                                                                   |
| ------------- | ------------------------------------------------------------------------------------------------------------- |
| **3D object** | A model from your organization's [object library](/dashboard/objects), placed directly in the learner's space |
| **Video**     | A video imported from your Photos library or local files                                                      |
| **Image**     | An image imported from your Photos library or local files                                                     |
| **Text**      | A text block with instructions or context                                                                     |
| **Document**  | A PDF attached as a reference panel                                                                           |
| **Recording** | A recording of your Spatial Persona with voiceover, captured directly in the app                              |

## Adding an element

1. Tap **+** in the element shelf
2. Select a content type
3. Choose or capture the content
4. The element saves automatically and appears in the shelf

Each shelf tile shows the element type, thumbnail, file size, and processing state. Large video files may take a moment to process after import.

## 3D objects

3D objects are sourced from your organization's [object library](/dashboard/objects). Once placed in a stage, you can adjust position, rotation, scale, and opacity directly in the 3D viewport.