Event groups

From your 'My Hub' page (please see below)

On the left hand side of your account, you will see the side menu in which you can select 'Groups'.

This will then show any groups you have already created

By clicking the 'Event' tab from the 5 options at the top of your page

You will be able to create an Event group by selecting 'Create Event Group' at the bottom of your page.

Add the group name

 And then simply select the group to add any Events through the 'Manage Events' button.