Vacation Delegation Exceptions

Summary

Attempting to exclude Invoice Approvals and Requisition approvals from a Delegation

Content

Executives often want to delegate certain tasks like PTO approvals, expense report processing, etc. to an admin or someone with less spend authority in their organization.  We would like to create a vacation delegation rule that would exclude ReqApproval and FinApInvoiceApproval.  The rules do allow multiple lines and the concept "isn't" equal to if choosing certain custom or advanced settings.  However it appears that delegation by Task Name only allows one selection and does not include the rules other than "is".  Anyone have similar requirements and/or solutions.