Thanks Charles.
Great.
What do you mean by "Note that the field must be updated after the file is saved in a new location."? Do you mean that I need to re-enter the field and before or after I save to the new location?

Also I inserted a header and entered Document: { FILENAME \p } into the header but it did not 'translate' it when I printed even after doing a save (ie just printed that 'code').

Thanks