Answer for 2.
Those server templates/regions are just a way to copy and paste server settings to different "sectors/servers". If you have 3 servers that you want to be temperate, its easier to just create one setting for all of them.
Made a map with (what i think are?) each server grid + a 10 digit grid square for each one. Wanted an easy reference for planning with my group, figured id share. Let me know of anything i should improve!