Specify hard to reach shipping locations

-- HikaShop version -- : 6.2.0
-- Joomla version -- : 3.10.12

Hi!

There are about 9.000 locations in my country that are hard to reach for the courier company and they have specific prices.
I need to add all these locations in my shipping methods but there are too many to do it manually, is there a faster easier way?

So my checkout page would have to be like this:

1. Select Country: Greece's hard to reach locations (from dropdown field)
2. (when selecting Greece's hard to reach locations) Select location: blabla

Thank you