I have a product bundle where customer needs to select a few attributes that affect the price. I have a base price of the unit, and I have added two different attributes for that. They are working fine.

The problem is with the "licenses number of user" for that product. Is it possible to have a text box (with a default value) that can be used as an attribute where people can enter number of users?

Product: XYZ
Attribute1: No. of A-lines (1-8)
Attribute2: No. of B-lines (0-2)
No. of Users: [10 ] x <price per user>

price-per-user is a fixed price. but number of users can vary (like quantity).