Wonderful to hear. To place down the wood block in the playing field(the world), it is the same as the tree. For the crafting recipes, it might not be working because it matters what the position of the items are at within the slots, but based on your description it sounds like you didn't put an axe in the tool slot. The hammer that you described is there to be an icon representing that a tool should go in the slot. In the case of the wood block recipe, an axe needs to be put in the slot where the hammer icon is. Then the wood block should appear in the output slot as expected. let me know if this answers your question or if you meant something else that I didn't clarify.