Good afternoon all, So I have a quick thought experiment… unfortunately I am at work at the moment and don’t have the time to fully research this concept, but I figured I would share the concept with the community in hopes that someone will have some experience to share that will assist me with my research later this evening. So my question is this, using reflections or other means would it be possible to make the slab block type inherit from the Inventory Holder class like chest? My end goal is to make half slabs function exactly the same as a chest. I don’t believe I could change the actual inheritance of the block class itself, but could I create an extended class that does inherit from the Inventory Holder class and then load that into the static variable that stores block types at during compile using reflections? So in short, I create a new class that extends the slab class and inherits from the InventoryHolder class, then using reflections we would change the static variable stored in Block.java in bukkit: Code: public static final Block DOUBLE_STEP = (new BlockStep(43, true)).c(2.0F).b(10.0F).a(h).a("stoneSlab"); We would change the above variable from creating a normal slab to creating a new custom one that we’ve created that does inherit from the InventoryHolder. As far as anyone can see would this cause issues elsewhere in the Bukkit source?