When an employee becomes ineligible for Absence Plan set plan balance to zero

I have an absence plan that does not pay out final disbursement upon becoming ineligible for the absence plan. Employees become ineligible through termination or transferring to a position that is not eligible for this absence plan. We want the balance to be zero (forfeited?) when this happens.

How do I configure this in the plan? I am not seeing an option for this and when my employees become ineligible, the balance stays in the inactive plan forever.