A must have mod for builders.

Clutter No More is a mod that lets you change blocks to stairs, slabs, vertical slabs, steps and back by just holding alt. And All stairs, slabs, vertical slabs, and steps merge back together when put in the same slot. I didn't want to add it to my modpack at first because I thought it would break stuff, but it didn't! It worked with every mod perfectly, even compat mods llike wood good! There are several other blocks, vanilla and modded that you can shape into variants, like clayworks glass doors into framed or not-framed variants. Add this mod to all your modded instances, you will not regret it.