We would like to set up one MSP approver, who is an technician of MSP, for some special categories service request of all accounts.

Flow: Requester 1 (Account A) -> Center Manager of Account A -> A technician (Service Owner of the category)

Currently, we can not setup a technician in any organization roles because he/she isn't belonged to that accounts and must setup specific his/her name to approval flow. I got the issues when the technician would leave his/her position, I manually change approval flows of service requests.

Do we have any parameter/role for this purpose? Please advise me better solutions for it. Thanks