This server behavior is used to setup the order gift discount. To give you the max flexibility you must create the recordset with the standard Dreamweaver recordset behavior so you can define the recordset filter like you need, besed on the user account or other methods.
Recordset:
The recordset name where get the gift discount setup
Fix amount:
The recordset field where find the Fix amount, if not used set to 0 (zero)
Percentage:
The recordset field where find the percentage of the discount, if not used set to 0 (zero)
Calculate on:
You can choose if calculate the gift discount always or only if is not present the traditional discount
Decimal round:
The number of decimal you need have for the gift discount amount.