A better way to enter a pattern

A mod idea for Beat Saber mappers. The YouTube description says what it is for: a faster, more efficient way to enter blocks and patterns than a mouse and keyboard allows.

The input device is the whole idea. Mapping a song is thousands of small placements, and the tool you place them with sets the ceiling on how fast you can work. Change the tool and the ceiling moves. Under two minutes, recorded September 16, 2021.