Does your mod allow for specific ranges?

For instance - in the IV postcode, Only these ranges charge extra for some couriers:

IV14-IV28,IV30-IV32,IV36,IV40-IV56,IV7,IV9-IV12

Can I set a range, or would I have to enter each one individually?

Also it might be nice if it were possible to add more zones for foreign countries with numeric postcodes (and ranges for them).

I have a CubeCart mod which does this. Am looking to move to Zen - but need such functionality.