1. Create a custom island with Terrain Builder
2. Place random buildings on the map, including some "special" buildings like churches, water- and TV-Towers
3. After binarizing, open up Arma 3 and start the custom island in editor
4. On the map, look for the spots the buildings are supposed to be and put the mousecursor over these spots until the text description pops up
5. Click the "ID" button in the toolbar above
= Numbers, Names but no symbols