Countdown Modal / overlay

I’m integrating Ring / HSM to Sharptools and I’d like to enable the countdown timer to show up on the dashboard, or, better yet, over the dashboard. I don’t want to see it all the time, just when it’s counting down. It’s easy enough to get the countdown timer from the Ring Virtual Alarm Hub attribute and set it in a variable, but how do I pop up the countdown over my dashboard when that happens?