Sounds and/or timer notice in chat box

I have just started a new monthly writing group using Heysummit and I have a course ready for release this fall with a similar idea in mind.

Basically, I have a prerecorded video with a little lesson type content in the beginning and then have the event logo screen up in the video for the time we are writing. We use the chat box along side this and I was wondering if it would be possible to have a notification sound for the chat messages and/OR, as I totally understand many wouldn’t want this, if we as the host could have a sound we can signal for time being almost up. It would be better than me adding a sound during the video because it could be signaled live time at the right moment. This would also be useful for when the chat box ends because right now, once the video stops, the chat continues but I have to refresh the page or I don’t see any of the responses from others while they do, it seems.

Thanks for considering!