its a bit tedious having to click through all the values in sequence to get the desired delay, particularly when going from +ve to -ve delay values. having a slider or drop down menu would make this much faster.
I’ve done this with the left/right buttons while the movie is playing, which gives instant feedback on the lipsync, and works great. Surprisingly I’m finding most videos need ~ +0.6 sec to sync perfectly. This will be part of my version V patch.