Commands:
/maintenance <on/off> (or no argument to toggle) (under generalcommands.yml most preferably)
Add a motd section to motd.yml that adds a specific motd when maintenance mode is on.
This would switch between the standard ones and the maintenance when the maintenace is on.
Add a message when players are kicked when in maintenance mode (configurable)
Commands: /maintenance <on/off> (or no argument to toggle) (under generalcommands.yml most preferably)
Add a motd section to motd.yml that adds a specific motd when maintenance mode is on. This would switch between the standard ones and the maintenance when the maintenace is on.
Add a message when players are kicked when in maintenance mode (configurable)