Request Approval Setup - criteria

Hi,

I am trying to add criteria for the Financial Structure Request approval process. Currently the process is the following:

Current State

1) Step 1 goes to Approver_Role 1 (All request_type and fieldname combos)

2) Step 2 goes to Approver_Role 2 ((All request_type and fieldname combos))

Target State:

1) Step 1 goes to Approver_Role 1 (Only "add" request_type for all fieldname and update request type for all fieldname, except "DEPTID")

2) Step 2 goes to Approver_Role 2 ((All request_type and fieldname combos))

So basically I need all Update DEPT ID requests to be directed to Approver Role 2 only. The rest stays as in the Current State.