NaNo Blocks

Mini Blocks allows you to place supported Minecraft blocks at 1/2 or 1/4 of their normal size.

Create detailed decorations and builds using miniature full blocks, slabs, stairs, fences, fence gates, torches and lanterns.

Controls

V — cycle between normal placement, 1/2 size and 1/4 size
H — show or hide the HUD size indicator
Right Click — place a mini block
Left Click — remove the mini block part targeted by the crosshair
Middle Mouse Button / Pick Block — copy the selected mini block and its size
Right Click on a mini fence gate — open or close the gate
Shift + Right Click on a mini fence gate — place another mini block instead of opening the gate

Key bindings can be changed in:

Options → Controls → Key Binds → Mini Blocks

The selected mini-block size remains active after changing the held block and after restarting the game.

Unsupported functional blocks use their normal vanilla behaviour instead of being converted into mini blocks.

The mod and Fabric API must be installed on both the client and server when playing multiplayer.