Motion effect with Drop Zone

I have watched all of the Ripple Training videos but can't figure this out. I am making a template/effect that I can apply to the main video with the drop zone being used for PowerPoint slides. I want to be able to pan/scale the video in the effect source window and not the window. The slide in the drop zone doesn't need to be scaled or panned. I can not get all of the scale/pan parameters to work. In my researching of the problems I am having I know that I can't publish/rig the Pan. So how can this be done?

Thank you Mark. Publishing both of those makes the the effect source window bigger and moves the window around. I want to be able to change the position and scale of the video in the window and not the window size or position.

I am trying to do this with an effect. Should I be using a title instead?

I made it in Titles and mostly got it to work. When I go to Image/Final Cut Placeholder everything works. I have not gotten the Scale to work. If I Publish the one Scale slider I get the X slider and not the Y slider or the just one slider to scale in both directions.