UPS: Commercial vs Residential

I installed UPSXML_v1.3 a module I thought would provide the consumer the option to select either commercial or residential for their shipping option. This module is not allowing this.

In admin, there are only 2 radio buttons to choose from, Commercial or Residential. So all my packages will be charged one rate.

Even in the UPS module that is standard with Zen Cart only offers these two solutions.

How do I allow the user to choose which shipping designation is appropriate?

Near as I can tell, you don't, currently. It'd be a great mod.

All you can do is charge residential rates (more expensive) to everybody if you ship to both.