Clear their sidebar
Take a player's own sidebar off their screen completely.
A Minecraft element (a step) in Scoreboards & teams. Needs the Basic plan or higher to go live; building and testing are free.
Example
When a player leaves a region → Clear their sidebar.
Also called
clear sidebar, hide scoreboard, remove sidebar, hide hud
Works as a data pack?
Yes. A vanilla data pack does this exactly as the plugin does.
What you give it
- Player