It's definitely a huge challenge to try and build things with this method in Minecraft

 You will not be able to easily create Minecraft Maps things in mid-air and you will now need to plan every stop you place a lot more carefully. Good luck because if you don't things will come crashing down quick! And when you have structures already built, you might want to support them before they wrap up collapsing.
The Quick Hotbar Mod allows you to quickly gain access to every item in your inventory. If you have ever found yourself building something complex that will require various kinds blocks and you constantly have to access your inventory to displace items in your hotbar, this mod is ideal for you then.

All you need to do is hold down the CTRL key and scroll with your mouse or arrow secrets. It will talk about 3 more inventory bars to cycle through to use as your primary selection.

The Elevator mod is a fantastically simple way to get up and down as well as laterally. It makes for a quicker mechanism to get where you should be at a considerably faster pace and automatically. There's no dependence on button pressing or complicated development.
See it   Instant Massive Structures Mod at minecraftio.com/instant-massive-structures-mod/