I know we can add postcodes in for billing purposes but is would be good to use UK postcodes to create shipping zones for courier service rules. At the moment it is very limited and we have to use order rules to setup multiple steps to get what we need.
This doesn't already exist it is only usable for billing according to your documentation, it doesn't work with courier selection rules.
https://accessgroup.my.site.com/Support/s/article/Mintsoft-Post-Code-Based-Shipping-Zones-for-Shipping-Charges-Surcharges