UPDATES on 10/3/2014 make it so this announcement below only applies to those with the legacy CQI integration. Those with integrated billing should refer to these new instructions on ACH options.
Members->Account tab is where you can set a member for automatic bank draft by clicking edit ACH Information for this member.
Turning this selection on places the designated fee items in an ACH invoice batch that will create an invoice and an automatic in-full payment, according to selections in Setup->Billing Options and Settings under the ACH Options and Settings area.
(Featured added 6/2012) After selecting Bill this member using ACH, each fee may be set to use ACH or not by clicking the fee item Name. Select Use ACH - yes or no. To create the ACH transactions for this member, select Billing->Invoices tab and choose Monthly ACH from the Batch Type drop down list.