Move "town name" selection into map generator GUI #8566
Motivation / Problem
There have been plenty of attempts to redesign the map generation window. Most get derailed into wanting to change everything.
Both settings do not belong into "game options". The most reported issue related to NewGRF town names is, that players do not "find" the "town name" dropdown to enable them.
Checklist for review
…ee window, and give it the same 'basic' visibility as 'in-game tree placement'.