This is a basic plugin which allows you to use /hub and /lobby and as a bonus it also has /ping
Installation: put the plugin file in your plugin folder of bungeecord and if its not working added your lobby server name in bungeecordhub.yml in your plugins folder
features: hub and lobby basically sends you to your lobby server in your bungeecord network. This is really helpful if you don't want players to use /server command and ping just tells the ping of players