var sublist = form.addSublist({
                    id: 'custpage_sublist',
                    type: serverWidget.SublistType.LIST,
                    label: 'Orders'
                });
     
                sublist.addField({
                    id: 'custpage_nameformula',
                    type: serverWidget.FieldType.TEXT,
                    label: 'Name Formula'
                });