Hi,
The 4 options are for the post code address. If it starts with the prefix, it if ends with the suffix, if it's between X and Y numbers.
There is no category restriction for the shipping but we have a "warehouse" one.
Put a restriction on a category is no in the right shipping way. Because if you have two products in two different categories, you won't be able to see the shipping methods. Each one will refuse it display because there are products which are not in the right associated category.
The warehouse system is more in the "HikaMarket" way. It will split the products depending their warehouse and it will propose to the customer several "groups" of products like HikaMarket can propose shipping per vendor.
The warehouse interface is not finished in HikaShop, but the shipping part is working. If you change the values directly in the database (or via the mass-action) I think you can have something working... If it is really what you want to do.
Regards,
Jerome - Obsidev.com
HikaMarket & HikaSerial developer / HikaShop core dev team.
Also helping the HikaShop support team when having some time or couldn't sleep.
By the way, do not send me private message, use the "contact us" form instead.