Bukkit

What steps will reproduce the problem?
1. Starting a skyblock
2.
3.

What is the expected output? What do you see instead?
The island is not expose to delete part of spawn.

What version of the product are you using?
Latest. Just downloaded it.

Do you have an error log of what happened?
No.

Please provide any additional information below.

I use world edit/guard to define a region called spawn but skyblocks will spawn around it and delete the blocks. How do i set it so it wont do this?