Player Region Limitation

[Etamiin]

[00:28:30 INFO]: §7Version: §b2.9.0
[00:28:30 INFO]: §7Description: §bUltimate SkyBlock v2.9.0-7cf840c
[00:28:30 INFO]: §7Language: §ben (en)
[00:28:30 INFO]: §9  State: d=256, r=128, i=4, p=3, n=false, awe=false
[00:28:30 INFO]: §7Server: §ePaper git-Paper-338 (MC: 1.17.1)
[00:28:30 INFO]: §9  State: online=false, bungee=false
[00:28:30 INFO]: §7------------------------------
[00:28:30 INFO]: §7§dVault §f1.7.3-b131 §7(§2ENABLED§7)
[00:28:30 INFO]: §7§dWorldEdit §f7.2.6+4b2d1e7 §7(§2ENABLED§7)
[00:28:30 INFO]: §7§dWorldGuard §f7.0.6+1cff55f §7(§2ENABLED§7)
[00:28:30 INFO]: §7§dMultiverse-Core §f4.3.0-b846 §7(§2ENABLED§7)
[00:28:30 INFO]: §7------------------------------

This is probably not a problem i would like to know if it's possible to limit the player to stay on his island region ?
Currently a player can go to other island (with fly for example), is it possible to not allow that ?

Thank's in advance