Hide Reference Object Picker Attribute

[Title("Hidden Object Pickers")]
[HideReferenceObjectPicker]
public MyCustomReferenceType OdinSerializedProperty1 = new MyCustomReferenceType();

[HideReferenceObjectPicker]
public MyCustomReferenceType OdinSerializedProperty2 = new MyCustomReferenceType();

[Title("Shown Object Pickers")]
public MyCustomReferenceType OdinSerializedProperty3 = new MyCustomReferenceType();

public MyCustomReferenceType OdinSerializedProperty4 = new MyCustomReferenceType();

// Protip: You can also put the HideInInspector attribute on the class definition itself to hide it globally for all members.
// [HideReferenceObjectPicker]
public class MyCustomReferenceType
{
    public int A;
    public int B;
    public int C;
}