Most MineFactory Reloaded machines that act in an area in front of them (i.e.: Fisher, Planter, Rancher etc...) can be outfitted with
Upgrades that go in the bottom-right slot of the machine. (Where a shadow of the Upgrade image icon is.) There exists 11 different upgrades with progressive increases, and 1 upgrade which decreases the range. (i.e.: A planter does a 3x3x3 in front of the machine. If you add a Upgrade (Lapis), it would become a 5x5x5 in front.) The Upgrade (Cobble) is used to make the machine act on a single block.