Duplicate attributes with different values.

Is there any way to have duplicate attributes in a block but with different values so when I use data extraction both sets of values will be sorted in the proper columns?

This is what I'm trying to achieve:

QTY.....ID.....#...........Description

1.........12.....POSCL....POS CABINET – LEFT

1.........12.....POSWL...POS WALL - LEFT

The block is for a unit that is made up of two fixtures (a cabinet and a wall with a counter top). Our customer uses the same ID for both fixtures and treats it as one unit, whereas our order form lists both the cabinet and the wall separately for production purposes. So both of our fixtures will have the same ID, but will have different product numbers and descriptions. In order for the information to show up in the table properly, I need two instances of an ID, # and Description attribute. If I use a different name for the additional attributes, I will get two extra columns.