To enable and set up automatic scrolling for your social wall, go to Settings > Behavior >Automatic Scrolling. You can customize the scrolling speed as well as the number of pages to scroll before going back to the top.
Automatic scrolling works for both the Fluid and the Grid layouts.
Here's what it looks like:
In case you have further questions, don't hesitate to contact the support team via the chat or firstname.lastname@example.org!