The owner menu

The owner menu is a Pane for you and your team admins, so you can do common jobs without leaving the game. Open it with /pane owner.

It shows:

• Restart server. Restarts your server after you say yes to Restart now?
• Online now, with a Kick button next to each player. Kick asks Kick Steve? first, so one slip of the mouse never kicks anyone. Five players show at a time: More players and Previous move through the rest.
• Difficulty: peaceful, easy, normal or hard.
• PvP, Whitelist and Flying: on or off.

Changes take effect at once and are saved in your server's settings, the same as changing them in the panel. Each change is recorded in your server's activity log.

Only players who are op on your server can open it: you and team members with the admin role are op by default. Other players who type /pane owner are told it is only for the owner.

The owner menu works on chest menus too, for when you play on another game version or on Bedrock. There every item says what it does and to whom, like Kick Steve or PvP: On, so you never have to count slots.