Zooming into a section of a video clip

[Old_Friend]

Hi. I looked through the VS "Help" file for an answer, and couldn't find one for my situation. Maybe I missed it? Anyway, here's what I want to do. I have a video clip in my 'video' timeline and while it's being played, I want to zoom-into a user-specified location on that clip. Hopefully, using a 'stretchable' rectangle, circle, ellipse, etc. to encompass the part I want to zoom into. Is this possible with a video clip, or does it work on static graphic images only? Just wondering.

[Ken Berry]

If you look in your FX library, you will see that there is a Video Pan and Zoom filter. Apply that to the clip you want to zoom in on, and then go into Options to Customize Filter. In the screen that appears, you need to add key frames below the two preview screens, specify whether you want to pan or not, and slide the Zoom slider to the magnification you want at that particular point. Then do the same for any further key frames you add.

[Old_Friend]

Ken, you always seem to know the right answer. Thanks! It worked.

I'm so new at all of this, that I don't have any understanding of "key frames" and the reasoning behind using them. I guess that should be a separate topic altogether from this?