Countdown Keeps Changing

I was trying to include a countdown timer, for a live stream.
I was able to create a countdown, but you have to position and size it in the countdown window.
I couldn't see how it interacts with the rest of the slide, so I had to build a slide around the position.
If you need to adjust the position/size of the countdown, you have to start over from scratch.
Given that I was never going to get it in the exact same position, every time, I made the slide work with the countdown.
But, the next time I started the countdown, the position and size changed.
So, I adjusted the slide to that new countdown.
When I created a third countdown, it changed again.
Is there a way to include a countdown within a slide (ProPresenter uses a code, I think) or build the slide inside the countdown window?
In its current state, I just don't think I'll use that feature.

I know I can position/size the countdown and then save it as a template, but I don't want to do that until I know it's where I want it.
I can't do that until I see the entire slide.
Thanks...
JJ