predefined actions - change?

[Thelma Sabim]

Hello,
I would like to change one of the 3 predefined actions in the invoice, so
instead of material I would have "words" - since I am a translator, this is
my commodity.
Is there a way to do that?
Thanks a lot.

-- 
Thelma L Sabim
www.tradutorabrasileira.com
www.portuguesetranslator.net
Curitiba (41) 3277-1971 USA (512) 837-5708
ATA & ABRATES Certified Translator
Juramentada JUCEPAR 12/219-T