on the APINVAPR workflow, is there a way to change the Invoice Total in the header to be nicely form

Hi Folks

We have been able to customize the body of the workflow as desired, but I have not yet found a way to affect the header fields.

In particular, our users would like the Invoice Total   (which shows as 10000 for instance) to instead appear nicely formatted (10,000.00 EUR for instance).

Has anyone figured out how to customize the header fields in the APINVAPR workflow?

-- Michele