I dont know about it

much how to give gmod a name and save the settings

Hey there. Do I understand correctly that you change server name in settings. Save it. And it changes back ?

no i just want to save settings like i set the npc to 0 and then everytime i newstart its 5 again and i want to save the settings so it will be 0 also i alerready know the how to change the name thingie thank you tho

Please check /garrysmod/cfg/server.cfg file