Building block dedicated inventory

Hello there.

I've been thinking about that feature yesterday night and this is what I've come up with.

A pseudo inventory (accessible from the hammer) where players can tell which building block they want to use based on blocks they've memorized. It should only take what's in magic chests or inventory.

I see it as a categorized list of blocks that the players can tick on and off as they want, when they want. Then it will show available materials filtered on what's ticked on and on what's in the player's inventory.

Hope my English is understandable.