Approve and adjust OT hours in Time Card

Currently, we are configured the system to auto calculate time card element through the fast formula and auto approve the time card.

However, we have a new requirement, for one department, that a designated employee from the department should be able to identify and change OT hours if the weekly OT is more than 12 hours. Upon submitting time card by the requester, time card must be approved by two approvers.

Ex :-

1. Employee previous week Total OT hours = 14
2. The Designated Employee from the department can view the above time card and change OT hours if needed and resubmit the time card.