How to move fields in custom form to "user-defined fields in folde
 

XP, Outlook 2003....I think I'm going to need a real expert with this one!

I created and have been using a custom form called "Custom1". When I go
into ToolsFormsDesign This FormField Chooser all the fields are saved in
"Custom1". They're not in "user-defined fields in folder".

The problem is that now I want to do a mail merge and only the fields in
"user-defined fields in folder" are available when creating a new document
(plus the standard Outlook fields). The fields in Custom1 to not appear.

How do I either access the fields of Custom1 for the mail merge, or copy
them into "used-defined fields in folder"?