To add a block, click where you would like it to be. To clear the work space, click the hand. To go to the different boxes in the hot bar, type the number of the box you would like to go to. To talk or command, press t. P.S, bonus feature. Awesome block inside, made myself, works great. Comment for suggestions. Remember, this is just version one! (.0)
Based off of Minecraft. I know, it's bad, but it's all I could right now. I'll add things.
