Share a timer across presets

So, I use Manycam when teaching and what to use the facility that allows me to superimpose a countdown timer on the video feed.
Unfortunately, I also use multiple presets to switch between views and each preset seems to get its own timer!
So, can we have a feature that allows a single timer to be added to multiple presets in a way that allows the countdown to continue when different presets are selected.
Thank you