e-Cost (Cost Centres) is the third section in Employment and Payment, which allows you to set the default setting for payment and hours allocation.
Paid By (FAST-Bank) allows you to select which Cost Centre's FAST-Bank File the Payee will be included in. This option is disabled when either the Organisation Payment Method is not set to FAST-Bank, OR there are no Primary or Secondary Cost Centres that this Payee is assigned to which contain Banking Details.
Default Cost Centre (Hours Allocation) requires you to select which Cost Centre all hours should be assigned to by default when the Cost Centre Alert (Modal) is opened in Process (Step 3 of the Pay Run).