1. Go to your gamepanel.
   
   
2. Click "Commandline Manager"
   
   
   
   
3. Click "Select" next to the commandline that represents the gamemode you want your server to run.
   
   
   
   
4. Click "Apply"
   
   
   
   
5. If your server is online it will restart and run the game mode you've selected. If offline, simply start it up.