The Worldshaper's Looking Glass is a tool added by Thaumic Tinkerer. To set a block, the player needs to shift right click the block that they want to set. A shift right click in the air will toggle through the amount of blocks that it will place. Hovering over the block selected will show where would the blocks be placed and that can be done with a right click.
Note: This infusion has an instability level of "Dangerous".
Through studying the world, you constructed a glass that allows you place a large array of blocks in the world using the power of your mind.
To set a block to place, one would shift-right click this glass in that block. Shift-right clicking the item in the air changes the amount of blocks it'll place.
When placing blocks in the world, a phantom visualization of how the blocks will appear is shown. On right click, the blocks will be consumed and placed, either from the inventory, or any Black Hole Rings that contain the required block.