Plague Inc: Evolved

Plague Inc: Evolved

Bring your deadliest ideas to life
Hit the lab and explore custom disease types and worlds created by the Plague Inc: Evolved community. Design your own scenarios in-game with the Plague Inc: Evolved Scenario Creator.
Can you change the devolve cost?
I am making a scenario and want to know how to change the cost to devolve traits or if it possible. I want to change it so the base cost to devolve is 0 is there anyway I can do that? thanks in advance!