I'm using Product Extra fields to add ISBN, Author, etc, to the products for a store I'm setting up. I've run into a situation where there are a limited number of options for one field (Ex. Binding: Hardcover, Softcover, Spiral). Is there an add-on that would allow me to create extra fields, but use radio buttons or a select field to choose the option? I have visions of the store admin going mad as they add new products and have to type the attributes each time.
This is purely for the admin side, customers would only see the text value.