If you signed up before Aug 9, 2021, please click Previous plans to view your applicable plans.
When you are familiar with the tickets tab, sometimes there will be requirements to alter the arrangement of fields on "The Tickets list view" page. Unfortunately, it is not customizable as the design of the page is set by default and is common for all accounts.
Please note that the custom ticket fields within Admin > Workflows > Ticket Fields could be altered in terms of the values and label. These changes would reflect within the filters on the left of the tickets list.
