Changing the Thumbnail of a Video in Stream
From the Stream video player, select “Video Settings” on the right-hand side.

Select the dropdown arrow for Thumbnail.

To pick a thumbnail from a frame in the video, select “Edit Thumbnail”.

Drag the video play head to whatever timestamp you would like to be the thumbnail and the click “Select This Frame”.

To upload a custom thumbnail. Select “Upload Thumbnail”

Choose the correct image from your files, and then select Done.
