Built in metronome for time under tension training
I'd like to have a built in metronome that plays a chime every second. This would be useful for time under tension training or German volume training. If implemented, it would also be useful to set it count at certain intervals. So, for example, a common German volume training count is 4-0-2-0, meaning 4 seconds eccentric, 0 second pause, 2 second concentric, 0 second pause for each rep. So the metronome would be set up to beep every second but at the end of 6 seconds (because of the 4-0-2-0) it would count out 'one' then beep 6 more time before counting out 'two', etc.
If the count were 3-1-3-2, it would beep for 9 seconds before counting each rep.
It would also be useful if each phase of the count could be set to a different sound.