Im going to suggest there being a command for letting a person build on your island on .org. It would help from building - to experiences of being a new person. There could be like /(There name) build permit (your name). This would be very helpful and useful. Hope it works

 

just invite them to your coop, this would cause too much people greifing.

 

What if your new or they have a island that is amazingly epic, and they dont want to loose it. You could also have a command to not giventhem permission, like take it away.

 

This ^^
If the person was a griefer you'd also need a command to remove them. No support for now.

 

You could use /(Playername) remove build (your name).

 

Considering .org uses worldguard, not going to happen, as there's no way to limit the actual command for allowing build perms and worldguard isn't open sourced to my knowledge to allow for compatability. Thread locked and archived.