Hi,
This feature is not implemented in the plugin but in the next big version of HikaShop it will be (the "multi-shipping" feature).
We made new interfaces for the plugins and thanks to it, we will integrate generic restriction features in all plugins (which will inherit of this new interface).
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.