I use Pigments with my Push 2 and a custom mapping program called PrEditor. I can choose up to 128 parameters to edit from my Push, but of course Pigments has waaaaay more than that. So I've set up this workflow where I have mapped most of the Engine 1 parameters for each of the three types of generators. I get something good on Engine 1 and then duplicate it with modulation (great feature!) to Engine 2.
The first time I did that I realized that there was no easy way to zero out just one engine. I could only do the entire preset. When I noticed that you can save Function presets, that inspired this solution. Engines can get pretty complex, especially with the Wavetable and Sampler generators. It would be amazing to be able to save an engine config from one preset to re-use in another.