To add a download button to a Sharing Page, first go to the group that has the sharing page configured and complete the following steps:
1. Channels > Sharing Page
2. Press Settings
3. Toggle 'Allow Downloads' to ON.
This will enable the video files to be downloaded on the sharing page.
This applies to every player in the group or subgroups that inherit the Sharing Page, unless the player has security added to it such as a domain restriction, Access Code or IP Whitelist.
In the cases where there is security applied to the player, the Download button will still appear, but the files will not be available once the button is clicked.