how to add crafting category to the oilrefeneriy

[nosports]

Hello,

i playing with modding.

and one of the problem for now is that i want to add a crafting category, but don't know how to add an additional crafting category to the base-oilrefinery......
anyone can guid me ?

beside modding i hope this will teach me some programming skills..

[eradicator]

table.insert(data.raw['assembling-machine']['oil-refinery'].crafting_categories,'your-new-category-goes-here')