I hope this is useful for someone. I looked around for how to do a stutter transition which causes the image to flicker quickly from one clip to another, often used for horror. Every tutorial I found involved taking little cuts and spacing them out. This seemed tedious, and had the disadvantage that now each clip was separate.

I figured out how to use Layer Dimensionality as shown:

https://www.dropbox.com/s/qroliadfofniyrs/LayerDimensionality.jpg?dl=0

This also has the advantage that once it is set up, you can save the FX Chain as a package and easily read it into another project.

Cheers, Richard