# Add attachments and embedded content

## Add Attachments (Images or Videos)

1. Open the course and click “**Edit**” on the lesson. 
2. Click “**Upload photo/video**”. 
3. Select a file from your computer: 

* No size limit for images
* For videos, we recommend a max size of 500 MB 

4. Click “**Save**”. 

<figure><img src="/files/PohN30PRWHZ9y5cjGlUi" alt="" width="563"><figcaption><p>Upload photo/video button in lesson editor</p></figcaption></figure>

You can delete or replace the uploaded media anytime using the **"×" icon** in the top right corner of the image (see the red box in the screenshot).

<figure><img src="/files/a8eYUTHNK0vgJi3AQlhO" alt="" width="563"><figcaption><p>"X" icon to remove attachment in lesson editor</p></figcaption></figure>

***

## Embed External Content

1. In the lesson editor, click “**Add embedded content**”.&#x20;
2. Paste an iFrame or a URL.&#x20;
3. Click “**Save**”.&#x20;

<figure><img src="/files/xWQQBJkED3YdNrfMCK4v" alt="" width="563"><figcaption><p>The "Add embedded content" button in the lesson editor</p></figcaption></figure>

You can delete or replace the embedded element anytime using the **"×" icon** in the top right corner of the image (see the red box in the screenshot).

After clicking 'Save', the **expected duration** of the lesson will automatically update based on the embedded content's length and text."

<figure><img src="/files/SNBeMOuiAk2hU4ecmKGy" alt="" width="563"><figcaption><p>The "X" icon and "Expected duration" field in the lesson editor</p></figcaption></figure>


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