Construction wand

From the Construction Wand mod. Construction wands are a fast way to build horizontal or vertical lines or planes of blocks in a single click. For example, the user can place a single line of cobblestone bricks to make a wall then repeatedly use the wand to build the entire wall with one click. This can also be used to build out platforms or fill in holes. As with vanilla tools each usage will wear down the wand until it breaks and disappears, with the exception of infinity wand which has unlimited durability.

Types

 * Wand iron crafting pattern.png - 2 sticks one cobblestone or various varieties of stone pack depending
 * Iron - 2 sticks one iron ingot
 * Diamond- 2 sticks one diamond
 * Infinity - 2 sticks one nether star

Usage
While holding the wand, mouseover where you will like to build and you will see black block outlines representing build potion. Then right-click to place blocks. The wand will place additional blocks adjacent to the target as long as the blocks are available in player's inventory.



Hold shift while scrolling with mouse-wheel to switch modes and add building restrictions such as only build up or down or only build left or right. This can be useful for preventing accidental building in the wrong direction

Undo
To undo, hold Ctrl+Shift and you will see a green edge overlay, then right-click (source: mod Github entry)