Classtime allows you to create custom class labels that allow you to tag and also filter your Sessions accordingly.
1. Open your Sessions page.
2. Click on the Edit-icon in the column Class (All).
3. Create a new Label.
4. Click on the existing label (by default unknown) and tag the Session accordingly.
5. Click on Class (All) to filter by label.
Class Labels are only available with Premium (Learn more)]