Mod Maker: Lunatrius
Website or Forum Page: https://mods.io/mods/1123-laser-level
Required Mod - LunatriusCore
1.10.2 - https://mods.io/mods/1123/download
Available on the mod page; images don't want to display correctly here.
Laser Level is a mod that allows you to add laser markers. this makes it easier to build repetitive structures easier than before, as you do not have to perform anymore block counting. Just press F12 to open the GUI, then add in a Laser Marker.