Changing seat status on scanned ticket

Hi all,

 

We had some tickets scanned accidently at an event (these were the leftover tickets in our collection box of people who did not collect their tickets/attend). So that our attendance reports are not inaccurate, I’d like to change the status of these tickets from “Attended” back to “Ticketed”. Does anyone know how this/if this is possible?

 

Many thanks,

Alison