[1.9.1] Settings Sub Permission & Height Permissions
Permissions | You can now give users permission to use specific /gt settings commands. E.g. if you want your users to be able to set the color of gravitytubes you can give them the permission "gravitytubes.commands.settings.color". You can still use "gravitytubes.commands.settings" to give permission to all settings commands. The following are valid sub permissions: height, power, color
Height Permission | You can control how high a player may make their gravity tubes. This is done with the permission gravitytubes.commands.settings.height.<height> e.g. permission gravitytubes.commands.settings.height.50 - this means that a user will only be able to set a tubes height to 50. If a player has multiple permissions the permission with the highest <height> parameter takes precedence.
This permission also applies to the /gt create command.