# Playing shared media
You control the playback of shared videos through use of the `Play Shared Screen Video` IFX. The position and length of the container on the timeline determines when the video will begin to play and how long it will play for.
## Adding a shared media controller
1. If the timeline view isn't active in the editor panel, select the timeline icon (
).
2. From the panel on the left-hand side, select 
**IFX**.
3. On the IFX library page, in the search field, enter `shared`, and then select the search icon.
4. Select the **Play Shared Screen Video** IFX.
5. Place the IFX in the environment. The location of the IFX within the environment isn't important.
## Play Shared Screen Video effect options
For instructions on how to access effect options, see [Effect options](/engage/experience-editor/working-with-objects/effect-options.md). For the the Play Shared Screen Video IFX, the effect options include the video source and playback settings.
| Option | Description |
| ----------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Video URL** | The URL of the video to play. We recommend that you place videos on a server that you control.
You can use a YouTube URL, but access is not guaranteed. For example, if the owner removes the video, or there is a change to the YouTube API that requires an update to the ENGAGE application, your experience will break.
|
| **2D Video / 3D Video** | Select whether the video is 2D or 3D. |
| **Loop** | Select this check box to loop the video. |
| **Playback Start** | The number of seconds to skip from the start of the video.
Note: If you set the video to loop, each loop after the first play through starts at the beginning of the video.
|
| **Volume** | The volume of the video's audio, as a percentage between 0 (mute) and 100 (maximum). |
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