How do I set a poster image on a media file in the browser?
A poster image is a thumbnail depicted next to the media file. The poster image is the same image that will appear for your Audience members before the video plays and loads behind the login prompt.
To change the poster image follow these steps:
1. Click on the drop-down menu by the desired media file.
2. Two options will appear, select 'actions'
3. Select 'upload poster image'
4. Select the desired poster image and click "choose"