For a full list of all features in FilmPack but not mentioned are the separate fine contrast sliders for highlights, mid-tones and shadows. These are worth their weight in gold for increasing detail in just one part of the tonal range.
Returning to the OP topic…
DFP focuses on more creative features of making a photo, or should I say re- creative?
Next to adding fine contrast to DPL and the film simulations (including the time machine presets). it features frames, film borders, surface defects, light leaks and more. While all these effects can be used sensibly, they risk to be too much in everyday work.
Are you talking about the sliders that display when you click “Advanced settings” in the “Contrast” section? If so I didn’t know anything about these until now.