You can add a Guest Status to an Event Category
This determines which Guest Statuses are available for the events made using that Event Category
Steps
Every event category must have at least 1 Guest Status.
Every organisation has a default Guest Status called Invited
As an Organisation Admin, you can delete your organisation’s default Guest Status if it has not been used and as long as your organisation has at least 1 other event state
Select My Apps in the top menu
Scroll across until you see Event Categories
You arrive on the Manage Event Categories page
Press the Edit button next to the event category you want to add additional states to
You arrive on the Edit Event Category page
Scroll down until you see the Add Guest Statuses box
Select the Guest Statuses you want to use on the event category
Drag the Guest Statuses up and down to arrange them in the order you want guests to be processed through them
Once done, press Save
You arrive back on the Manage Event Categories page