Garnishments (Child Support) and ACH

I am attempting to set up child support garnishments to be transferred via ACH. In going through the documentation I have done the following:

1) Test employee garnishment is set to: Support

2) Additional field in IR194 is set to: 06067.

3) Separate check indiocator is checked

4) View V_T5UGI for CA Child Support is set to 08 and 09, gform = ZFG1.

I have run payroll and the pre-DME using our regular variants. Now what?

Do we run RFFOUS_T twice? Once for our regular bank xfers and once for garnishments?

Is there additional config to be dione in forms or FI?

Thanks for any help.