Config API
Here you will find the information how to take advantage of using the AtumCore configuration api
As you have probably already noticed the library has its own Config class, with more methods to use
How to create new config file?
AtumAPI.getInstance().createLoadableConfig()
It is automatically added to the ConfigManager of the AtumPlugin instance.
How to save&reload configs?
Use ConfigManager
Hey! Where the Config#getConfigurationSection method?!
No worries, it has been renamed to a more meaningful name - getSubsection()