Note: Creative manager will be updated by February/March 2014.
Whats CreativeManager?
CreativeManager is a Bukkit Plugin that controls the things that people can do in creative, such as:
If they can place/destroy bedrock, If they can keep there inventory when changing back to survival, If they can drop items in creative.
Commands:
Valuables is so you can put what blocks CreativeManager should keep track of, for example if you place a diamond block with creative and then a non-op on survival wants to destroy that block and keep the loop they can't since the plugin will prevent them from destroying it.
Config is so you can select what ops and players can do in creative.
keep_inventory: If set to false the inventory they have in survival will be saved when they change to creative and when they go back to survival they get the saved inventory. bedrock_place and bedrock_break: Allows you to manage if they can place or destroy bedrock. can_drop: if set to false when in creative they can't drop items.
As usual, All suggestions are welcome and might be implemented on the next release.