Labels are keywords you can add to your campaigns to group them on various factors, such as purpose or audience, and also filter them easily. We have now unified labels across VWO products (Testing, Insights, and Plan). Now, once a label is created, you can add them to goals, funnels, forms, surveys, tests, observations, and hypotheses.
You can also head over to Settings > Campaign Settings to manage labels in your VWO account from one central place. This helps you view all existing labels created in your account, create new ones, and delete them from your account.
To learn more about managing labels, refer to this knowledge base article.