[Zope] a zope field inside a zc.table column's value

Hello, Does anyone know if I can have a zope.schema.field (Zope3) as a column value for zc.table table so I can have a input in this column ? I have a ecommerce "checkout" table built with zc.table. I want to have a column "quanitity" but instead of a static value, I would like to have a textfield so the user could input the amount and update the value (final price). How could I implement it? I'm using zope.formlib to build the forms btw. Thanks, Marcelo.