Pause/resume video independent from user

Hi,

I want to create a video with a software demonstration. Audio will be added afterwards, by three different people (different speakers/accents).

This means that sometimes, I will have to:

1. make the audio file longer to match the video (add silence where possible)
2. pause the video to match the audio (until the explanation of a certain part has ended)

The first point is not an issue. However, I don't find a way to pause a video object for say 3 seconds.

I have already checked the following:

• recorded video in a cpvc file. You can trim and split video, but no way to pause it as far as I can see
• multi-slide synchronized video. You can distribute the video across several slides, but no way to pause again.

I know that one can pause a slide by adding certain objects (click box, button etc.), but these only continue on success. This is not a solution for me, since I don't want any user interaction at all.

The only thing I have found until now is the following:

• use a mulit-slide synchronized video
• place the area for the pause at the beginning of a slide
• add an advanced action on Enter slide: pause - delay next actions by 3 seconds - continue

Is this the best I can get? Any ideas? Or am I missing something crucial here?