Click Type
Affects actions that requires a click / right click, when set to "BLOCK", the action will only execute when clicking on a button, when set to "AIR" the action will only execute when clicking on the air and when its set to "BOTH" it will execute both on block and air clicks.
Skull Owner
If the item is a player head, set its texture to be someone's skin head by setting skull owner to his name. !! Custom head plugins would be supported to replace this soon! !!
