If you want to have a scouting region added, please just expand the list. Enter a name for the region and the 3 letter codes of all countries(max 10) you want to include next to it.
If the region makes sense I'll approve it. There is some stuff to consider: The countries you add do have to have a connection. You can't for example add a region including Peru and Taiwan.
You can't make a region too big, by including many bigger (cycling) countries in a region. For example combining Netherlands and Belgium into a scouting region is not allowed, as that would be a too big talent pool. Italy and San Marino or Spain and Andorra would be accepted on the other hand.
Some countries have many added regions in PCM already, so it is also possible to focus on some of them if you like. Look into the tab "Regions" to see what is part of the game. You can include any of these regions into your created Scouting Regions. For example if your focus would be Basque you could combine Spanish and French regions into a Scouting zone. For that just copy the name of the regions exactly like it is in the file into the line of your scouting region.
If you want to send several Scouts to the same country it might be a good idea to split up that countrys regions into several so the scouts don't cross each others path