Add event tags
You can divide your events into different categories/groupings by adding tags to you event. This is a great way to manage all your events.
Go to organisation settings to create event tags.
To add an event tag, go to your events and click [...] next to the event you would like to tag, and click 'Add tag'.
In your event portal, which you can access directly from the Event Manager, you can now see the different event tags. By clicking a tag, you're shown the events with this tag.