Quote: I want to make one clip move out from full screen at first and into the left while becoming smaller 1/4th size to make way for new clip on the other side. is that possible? is it hard?

Yes it can be done with overlays and it is not difficult. You will need the final image you want on the main track (or a color panel). You would add the first image, size it to cover the one on the main track and then zoom out and place it where you want it. Repeat for the other images. There are probably about a dozen videos on how to do it - the trick was to find the term "Overlay"

I would start looking at PDToots channel for tutorials : Look here:
http://www.youtube.com/user/PDtoots .
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