What I Want: I would like it so when players do /smelt, they can see a fully functional furnace interface. Very simple. Commands: /smelt Permissions: NONE When I Need It: ASAP PS there is a plugin that has it, but that part of it actually isn't implemented yet.
@MineplexPlay VirtualPack sounds like something which would fulfill your needs. http://dev.bukkit.org/bukkit-plugins/virtualpack/