Enhance your annotations with class attributes. Configure your attributes in Project Settings, then add them while Labeling.
Subclasses can be added to your annotations using class specific attributes. These attributes are included in your dataset exports for Object Detection and Segmentation projects.
Attributes are added to classes in the Project Settings page.
From the Project Settings page you can view all of the classes in your project's dataset and add Annotation Attributes.
After creating an annotation you can add attributes to your annotation in the Class Selector.
Supported Export formats and their expected structures:
COCO / COCO Segmentation