REQUEST - Pixel map frame smoothing

When I slow down the play speed of a clip to 1%-10% (for instance, the stock purple pinwheel one), I can slow it down to one frame at a time. However, it becomes a slow, stuttery effect, rather than a slow smooth one.

Now, I know WHY this happens, it's playing 1 frame at a time in their completed state.
The option I want is to be able to smooth the path between the frames so they'd be more linear rather than a 'step'. Maybe this could be under 'MODE' for the pixel map layer fixture?

On a related note, I can't find any documentation (on console help and pdf manual) for the existing "Mode" options for the pixel Map Layer fixture. Some of them are intuitive, but not all.