Misleading clock parameter TimerAlwaysFires / eggtimer versus metronome

MIT App Inventor Help
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1

I got a bit confused of the counter intuitive clock parameter TimerAlwaysFires.
When the application is on screen the clock timer always fires independently if Set Clock.TimerAlwaysFires is set true or false.
Here is an example to implement a "one shot" eggtimer and a "always firing" metronome

clock_eggtimer_metronome
clock_eggtimer_metronome1055×502 73.7 KB

clock_eggtimer_metronome.aia (41.2 KB)

2

I fell for this too.

See What means TimerAlwaysFires?
for my test results correcting my misconception.