Yes, by clicking the Update Expiry button on the Order page.
1. At the top right of the page, click Update Expiry
NOTE - this button will only be available if it is a Reservation or In Basket order.
2. On the pop-up, either:
Enter a relative expiry time, e.g. 5 minutes from now
Or choose a custom expiry time - select date and time options from the dropdown
3. Click Update Expiry and the new expiry date and time will appear at the top of the order page
