How to Append WorkOrderNumber to OutputXML file - WorkOrderCreate Template

When I use the WorkOrderCreate Template from SAP PM module in xMII the OutputXML file saved with a name which can be configured.

In my case I need to Append SAP generated WorkOrderNumber to OutputXML file. The number that is being appended to the file by default is some sort of dynamic number (%0000000001) but the actual work order number is for example 4000240.

To be more specific what element/value should I map to the Local.SpecificName propery in BLS WorkOrderCreate transaction so that the SAP generated work order number is appended to the file name.