PS: The 'N' number does not necessarily need to be showcased.
There can be 2 ways
Add Latitude and Longitude of each region manually (get the information from Google)
Turn sub region to Geographic role
You will see null at RHS bottom
Double click on that and enter either Latitude and longitude or any country inside that continent like India
Hope it helps !
Please mark the answer as CORRECT/HELPFUL if it really helped you so that it can help others as well