/Furnace {amount of signal strength}

[H2o_h3]

Loads of uses for this would be amazing, so much easier to get the right amount of signal strength you need, you can just use /furnace {amount of signal strength} and it will give the player a furnace with NBT data containing that many items to get that many signal strength.

[Nickster258]

Actually a fairly good idea. It should not be that hard to make.

[LambdaPI]

May I suggest also /hopper, /chest and /cake?

Or /sigs [chest][furnace][hopper][cake] <ss>