Yes a record/playback has existed for quite some time. It is mostly used for debugging but can also be handy for recaping what happened.
do 'showeq --help'.
Code:
-j, --playback-file=FILENAME Playback packets in FILENAME, previously recorded with -g option
--playback-speed=SPEED -1 = Paused, 0 = Max, 1 = Slow, 9 = Fast
-g, --record-file=FILENAME Record packets to FILENAME to playback with the -j option.
With playback speed interactively controlled via:
Ctrl+X - Increase Playback Speed
Ctrl+Z - Decrease Playback Speed
Enjoy,
Zaphod (dohpaZ)