Enabling SPP within microphysics

[wjcrawford]

Does anyone have experience enabling SPP within the microphysics?

I've had success enabling sections of the SPP code, but I don't see where/how the SPP weights (spp_wts_mp) are to be calculated within the Thompson microphysics.

The Stochastically Perturbed Parameterizations section of this page (https://ufs-srweather-app.readthedocs.io/en/latest/UsersGuide/CustomizingTheWorkflow/ConfigWorkflow.html) makes it look like the flags need to be defined in a config.yaml file, but I'm unsure where the file should live, and if I need to build it myself.

Thanks for any help you can provide!