To add an extra tire simply edit the tire set. If need be, up to 3 additional tires can be added to a set for a total of 7 tires.

1. If there's an appointment, click on the tire icon for the set you want to add a tire to summon the edit tire set window. 
   • If you are on a customer's profile page, just click anywhere on the set to summon the edit tire set window.
2. Click on the blue + button on the top right to add a tire to a set.
3. Change the tire position on the newly added tire to SP to indicate that it's a spare tire. 
4. Click the Save button to update the tire set.

PLEASE NOTE: You can't delete an extra tire from a set if it's attached to an appointment, so only add a tire if needed.