David,
If your fields are named such that they have a sequential naming convention (i.e. field1, field2, field3), you can use an iterate with a list basis {1 2 3 4 5 …} and reference your field within the iteration using the iteration variable you assigned (i.e. %l1); thus, your field reference in the xlate action would be field%l1.
Hope this helps.
Jim Cobane
PHNS, Inc.
