Updated first post with a new version!
Now the above example can be done like this
Code:
fr=5
ColorBars()
KenBurnsEffect(startFrame=0, endFrame=3*fr, KeepState=false, endAlign=4, endZoomFactor=150)
KenBurnsEffect(startFrame=3*fr+1, endFrame=6*fr, KeepState=false, startAlign=4, startZoomFactor=150)