Apple Watch Ultra Action Button Customization - Settings & Shortcuts for Runners

Am I missing something regarding the apparent limitations of what you can actually make the Action Button do ? Given the touch screen does not work when you are sweating there is a critical need to have a physical button that can Stop the timers/stopwatch when tapping on the screen fails to work.

There needs to be a way for at least one of the three buttons - Action, Side, Crown - on the Apple Watch Ultra to Stop the Workout Timer or Stopwatch with a single press. It could be a Gesture or Shortcut. I had assumed this most basic button action would be possible. This specific action only needs to be active and reserved for one of the buttons once the timer or stopwatch has started. The current two button press, Action Button + Side Button, to Pause a Workout or the Stopwatch is a) unreliable - unless both buttons are pressed at exactly the same time the watch will do something else instead of Pause, b) This does not Stop/End the timer or stopwatch, which is what is needed. Allowing the Action Button to Start on first press and Stop on second press would be better than nothing, but a true stopwatch has a seperate button for Start and Stop to insure that is exactly what happens when the user intends.

If someone knows how to get any of the buttons to do this, I can't wait to get this done.