Hey.. i'm trying to run my own minecraft server, not an alpha one, and how do i take the edited maps i made and put them in my server so when people connect they can see it as flatgrass not all bumby like the default? cause i edited one flatgrass but idk how to put it in.... and also, how do i make my own commands? like on other servers i play they have /water /lava and stuff but mine has none...