Canopy
A one-way floor: it holds whoever stands on it, lets you pass and jump through it from below and from the side, and drops you when you sneak. Cover shafts with it, or make floors that animals cannot fall through but you can.
kindblockcreative tabFluxiongroupMirrors, relays and addition devices
Currents
Gale1What the Loupe reads: 1 in all. The game works them out from its recipes. Wheel of Currents
In the Codex
Entry 
Canopy — A floor can let you through one way. Read scaffolding.
Device
Device group: Mirrors, relays and addition devices.
