Trying to figure out how I can do this using FileMaker - I am sure it is simple.

I have written a report - before the report is run the user can make a selection - The selected item is then displayed in the header of the report. This works fine. However, if there is no selection - The assumption being that the user requires all items to print. I would like to display the word "All". The list box only show valid values. The report work well - however when no selection is made the first record item is displayed in the header - Problem - since the report show all items!

Can some one help please.

I'd create a global field for the header that enters the user selection, and enters "All" if the user makes no selection.

Sounds like you're performing a find to search for and print all the items that match the user's selection, and to print all the records if the user makes no selection. If so, you can still enter the user selection in the global field using a find/print script.