################ Gatspawner/Automatic Stargate Spawning ################
That task is really easy. Spawn all gates,DHDs,rings,ring panels and probably stargate ramps where you need them. Now go to console and type
stargate_creategatespawner_file
Now a file called <the name of the map>.ini.txt is created in garrysmod/datas. Rename it to <the name of the map>.ini and copy it
to garrysmod/addons/stargate/data/stargate/gatespawner_maps
NOTE: Does only work in singleplayer or if your an admin. And don't do dumb stuff like adding the "<" and ">" to the file name (Thats a placeholder)