Pause video layer with an expression for x seconds.

well Nick.. I've just launched a script that will do exactly what you are asking for, here's a quick tutorial for how you can use PlayPauseRepeat:

https://youtu.be/1lmLQwsyvyY?si=lF99IXQ3d1eUP4Ct

the link to download it is in the video discriptipon!

hope you like it! and if you do, please support by sharing, reviewing or donatiing.

thanks!
Awn

Not sure how close this is to what you're after, but you could enable time remapping on your video layer and apply this time remapping expression, which will pause for 1 second at each layer marker:

delay = 1; // delay 1 sec at each marker
m = marker;
t = time;
if (m.numKeys > 0){
  n = m.nearestKey(time).index;
  if (time < m.key(n).time) n--;
  if (n > 0){
    d = (n-1)*delay + linear(time - m.key(n).time,0,delay,0,delay);
    t -= d;
  }
}
t