Your scripts must be children of the Editor folder.

You can discover some usages from Samples in the package.

Attribute

You must add this attribute to your method to serialize.

[EOverlayElement(name:"Tab Name",order:0,enableCondition:"condition_variable_name")]

Enable Condition

If you want to control your methods visibility with bool variable you can use enable condition parameter.

public static bool EnableCondition {get; set;}
[EOverlayElement(name:"Tab Name",order:0,enableCondition:"EnableCondition")]

Methods

Your methods must be static and public to work correctly.

Supported Types

[EOverlayElement(name:"Tab Name",order:0,enableCondition:"condition_variable_name")]
public static Type MyMethod(Type a,Type b,Type c){}

Also you can show your custom VisualElement.

[EOverlayElement(name:"Tab Name",order:0,enableCondition:"condition_variable_name")]
public static VisualElement MyMethod(){}

Method Samples

[EOverlayElement(name:"Tab1")]
public static Color MixColors(Color myColor,Color secondaryColor)
{
return (myColor + secondaryColor)/2;
}