Hello!

I would like to disable the Engineer Hammer's villager trade, but it's neither in the config nor in the data folder. Is there a way to do this?

Versions
IE : 5.0.7-143
Forge : 36.2.35

Thank you very much by advance,
Z4RM

Nope, not possibly. Vanilla trades are a very messy system, and there is no particularly clean way to make them configurable.