POWL Column name Personalization

Hi

This may be a silly question but does anyone know if it is possible to change the name of a column in a query delivered in a POWL without changing the feeder class?

We are using SAP ESS/MSS and want to change the column headings for the POWL for employee documents through personalization. We are fairly new to POWLs but it looks like we would need to repair the SAP delivered feeder class or create a customer copy of the feeder class and the referencing WDA. THis seems a bit much for personalization and I was wondering whether we have missed a trick and there is an easy wat to change the text for a column heading.

Thanks

Mark