This is a topic for the creative world at chickencraft.
Unlike the bigger servers, we have no area restrictions.
We trust our players here, but we have antigrief plugins and can rollback when recessary.
Griefing can lead to a permanent ban.
To enter creative mode you need to visit the "other worlds" section at spawn.
There will be a pressure plate wich moves you to the creative world.
When you are at the creative world, stand on the "instant creative pad".