Saving And Loading Scenes

I have seen a few comments about it but I am still confused. I saved a few scenes last night by typing /save . It confirms the save. But when I try to type / load Amstead (the name of map) it comes up as invalid command. How do I save maps and then load them up when I need them?

Not sure if it's just a typo in your message, but there shouldn't be a space between the slash and load. e.g. /load Amstead