Hi Erik
At the moment, you cannot zoom into a specific area of a video.
In the video tutorial, I was working with a raw piece of footage with a zoom effect in it. The video only zooms into the center of the video. You can change the properties of the effect by adjusting the volume envelope or right clicking on the effect and select effect properties. Once you select effect properties you will be brought into effects parameter windows (see screenshot).
Here you change the parameters of the effect but you will not be able to select a position point for the zoom effect to begin.
I have taken note of your request and will pass it on the dev team and see if it something we can implement into a future release.
Thanks for your input, we appreciate it.
Best regards
Cormac
The Trakax Team