Does anyone know how to prevent entry in WG regoins?

[west pewter]

I'v tried add as member group but this seems useless.
Using 1.12.2 spigot w/ wg 6.2, help plz

[woeful lodge]

probably set the entry flag to false

[west pewter]

I set but nothing happens

[woeful lodge]

probably if u r op u bypass it