hephaistos 2 docs/help

[u/ApesAmongUs]

I can't find a better place to ask this, so I'll try here. Does anyone know about making house rules in hephaistos2e?

Specifically, how do you have a feat ask for choice to be made (like pick one skill)? I've read through https://sf2e.hephaistos.online/docs/guides/dragonscript/, but I just don't see a prompt or field anywhere. I know it works from Assurance, but I just can't figure out how to do it in a house rule.