Possible to add discretionary disbursement sub-elements after initial element creation?

Summary:

An Absence payroll element was created and upon initial setup the plan did not require discretionary disbursements. For the Payroll Element questionnaire, answered no to the question "Does this plan enable partial payment of balance?", so discretionary disbursement elements were not created. Now, business users have requested to enable discretionary disbursement for the plan. Is it possible to add Discretionary Disbursement sub-elements for the absence element after initial setup?