Where is the documentation that explains the parameters of nodes. For example: how are "inventory Preset", "sprite item", and "game object" defined? What does "Unoccupied by go(coo)" mean? is there a resource explaining these things? Also, how do I make it show the mouse movements on the game when the script is running? I've seen videos where the mouse is traced with a orange line indicating the position and path traversed. Is there a way to check if a ground item is at a specific coordinate?