I have an event that has references of supplier and product. When creating a new event, I would like to be able to select the related supplier from a dropdown, then based on that selection, choose a product from a dropdown which is populated only by the products from that supplier.

This module mostly does that job, only instead of being able to select a supplier from an easy to use drop down, it requires that you know the proper names of all of the existing suppliers in order for the text box filter to match.

Might it be possible to have the text box filter get its input from other dropdown, or some other user friendly method?