Introduction

Building Gadgets is a mod by Direwolf20 that adds several tools that make building in Minecraft very much easier. There is a bunch of additional information available on the mods official wiki. All of the gadgets need RF to function.

To start, hold the mods Settings button (G by default) to open the radial menu:


The radial menu has all the different settings for the Tools. On the Building Gadget, each of the buttons on the circle are a different building mode, the buttons on the right are options for that building mode, and the buttons on the left are for manipulating the world. 
 


The Anchor button will keep the structure right where it was when the button was placed, so you can walk around it and make sure it's how you want it to be.

Building Gadgets will remember the last 10 times it was used, and you can undo them with the Undo button.

The Rotate button will rotate the entire structure, or blocks within the structure like Stairs.