Make a text field option... inventory!

Im trying to use the product combination feature to build a product.

The problem is, I have a text field that is only necessary if the buyer chooses a particular choice from a drop down menu. Otherwise, any notes left in it will be confusing for my staff.

Is it possible create a product combination using a text field?


[color=#000000]CS-Cart: version [/color]3.0.6 PROFESSIONAL