Looking for a timer with different options

[1markmask]

I edit lectures and while listening to them I need to mark the time when
the person coughs etc. so I can edit that out later. It would be great to be
able to click each time that happens and save it at the end so when I get
the audio file I can look back at the saved times in the timer app and know
where I need to go in the audio file to edit. I have looked but I can't find
anything like that. Does anyone have any suggestions or ideas of doing
this differently?

Thanks,

Mark

[1markmask]

Btw, I'm using Mint 20 Cinnamon 4.6.7
Thanks ahead of time.