Available only in the Advanced show.
In the Advanced show, you can add live HTML graphics. Create an account on the UNO website here: uno - Live overlays for streaming
On the UNO platform, you can select and modify a live graphics template. Once that's done, return to ACS, tap on HTML Graphics and paste in the URL for the live graphics from the UNO service into the URL field. This will enable the live graphics in ACS.