diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/core/attributes/Processor.java b/src/main/java/io/github/thebusybiscuit/slimefun4/core/attributes/MachineOperator.java
similarity index 58%
rename from src/main/java/io/github/thebusybiscuit/slimefun4/core/attributes/Processor.java
rename to src/main/java/io/github/thebusybiscuit/slimefun4/core/attributes/MachineOperator.java
index dbd14ae6b..d5778e858 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/core/attributes/Processor.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/core/attributes/MachineOperator.java
@@ -5,8 +5,13 @@ import javax.annotation.Nonnull;
 import io.github.thebusybiscuit.slimefun4.core.machines.MachineOperation;
 import io.github.thebusybiscuit.slimefun4.core.machines.MachineProcessor;
 
-public interface Processor<T extends MachineOperation> extends ItemAttribute {
+public interface MachineOperator<T extends MachineOperation> extends ItemAttribute {
 
+    /**
+     * This method returns our {@link MachineProcessor} instance.
+     * 
+     * @return Our {@link MachineProcessor}
+     */
     @Nonnull
     MachineProcessor<T> getMachineProcessor();
 
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/core/machines/MachineProcessor.java b/src/main/java/io/github/thebusybiscuit/slimefun4/core/machines/MachineProcessor.java
index dbdee1339..43129ecb1 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/core/machines/MachineProcessor.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/core/machines/MachineProcessor.java
@@ -23,11 +23,24 @@ public class MachineProcessor<T extends MachineOperation> {
     private final Map<BlockPosition, T> machines = new HashMap<>();
     private ItemStack progressBar;
 
+    /**
+     * This returns the progress bar icon for this {@link MachineProcessor}
+     * or null if no progress bar was set.
+     * 
+     * @return The progress bar icon or null
+     */
     @Nullable
     public ItemStack getProgressBar() {
         return progressBar;
     }
 
+    /**
+     * This sets the progress bar icon for this {@link MachineProcessor}.
+     * You can also set it to null to clear the progress bar.
+     * 
+     * @param progressBar
+     *            An {@link ItemStack} or null
+     */
     public void setProgressBar(@Nullable ItemStack progressBar) {
         this.progressBar = progressBar;
     }
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/electric/reactors/Reactor.java b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/electric/reactors/Reactor.java
index 2bf988182..b305b8bd8 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/electric/reactors/Reactor.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/electric/reactors/Reactor.java
@@ -23,7 +23,7 @@ import io.github.thebusybiscuit.cscorelib2.item.CustomItem;
 import io.github.thebusybiscuit.cscorelib2.protection.ProtectableAction;
 import io.github.thebusybiscuit.slimefun4.api.events.ReactorExplodeEvent;
 import io.github.thebusybiscuit.slimefun4.core.attributes.HologramOwner;
-import io.github.thebusybiscuit.slimefun4.core.attributes.Processor;
+import io.github.thebusybiscuit.slimefun4.core.attributes.MachineOperator;
 import io.github.thebusybiscuit.slimefun4.core.handlers.BlockBreakHandler;
 import io.github.thebusybiscuit.slimefun4.core.machines.FuelOperation;
 import io.github.thebusybiscuit.slimefun4.core.machines.MachineProcessor;
@@ -59,7 +59,7 @@ import me.mrCookieSlime.Slimefun.api.item_transport.ItemTransportFlow;
  * @see NetherStarReactor
  *
  */
-public abstract class Reactor extends AbstractEnergyProvider implements HologramOwner, Processor<FuelOperation> {
+public abstract class Reactor extends AbstractEnergyProvider implements HologramOwner, MachineOperator<FuelOperation> {
 
     private static final String MODE = "reactor-mode";
     private static final int INFO_SLOT = 49;
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/geo/GEOMiner.java b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/geo/GEOMiner.java
index 05b151298..4df353390 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/geo/GEOMiner.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/geo/GEOMiner.java
@@ -19,7 +19,7 @@ import io.github.thebusybiscuit.cscorelib2.item.CustomItem;
 import io.github.thebusybiscuit.slimefun4.api.geo.GEOResource;
 import io.github.thebusybiscuit.slimefun4.core.attributes.EnergyNetComponent;
 import io.github.thebusybiscuit.slimefun4.core.attributes.HologramOwner;
-import io.github.thebusybiscuit.slimefun4.core.attributes.Processor;
+import io.github.thebusybiscuit.slimefun4.core.attributes.MachineOperator;
 import io.github.thebusybiscuit.slimefun4.core.attributes.RecipeDisplayItem;
 import io.github.thebusybiscuit.slimefun4.core.handlers.BlockBreakHandler;
 import io.github.thebusybiscuit.slimefun4.core.handlers.BlockPlaceHandler;
@@ -42,7 +42,7 @@ import me.mrCookieSlime.Slimefun.api.SlimefunItemStack;
 import me.mrCookieSlime.Slimefun.api.inventory.BlockMenu;
 import me.mrCookieSlime.Slimefun.api.inventory.BlockMenuPreset;
 
-public class GEOMiner extends SlimefunItem implements RecipeDisplayItem, EnergyNetComponent, InventoryBlock, HologramOwner, Processor<MiningOperation> {
+public class GEOMiner extends SlimefunItem implements RecipeDisplayItem, EnergyNetComponent, InventoryBlock, HologramOwner, MachineOperator<MiningOperation> {
 
     private static final int[] BORDER = { 0, 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 26, 27, 35, 36, 44, 45, 53 };
     private static final int[] OUTPUT_BORDER = { 19, 20, 21, 22, 23, 24, 25, 28, 34, 37, 43, 46, 47, 48, 49, 50, 51, 52 };
diff --git a/src/main/java/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/abstractItems/AContainer.java b/src/main/java/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/abstractItems/AContainer.java
index 69f1ae966..6e4b6983e 100644
--- a/src/main/java/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/abstractItems/AContainer.java
+++ b/src/main/java/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/abstractItems/AContainer.java
@@ -22,7 +22,7 @@ import io.github.thebusybiscuit.cscorelib2.item.CustomItem;
 import io.github.thebusybiscuit.slimefun4.api.SlimefunAddon;
 import io.github.thebusybiscuit.slimefun4.api.items.ItemState;
 import io.github.thebusybiscuit.slimefun4.core.attributes.EnergyNetComponent;
-import io.github.thebusybiscuit.slimefun4.core.attributes.Processor;
+import io.github.thebusybiscuit.slimefun4.core.attributes.MachineOperator;
 import io.github.thebusybiscuit.slimefun4.core.machines.CraftingOperation;
 import io.github.thebusybiscuit.slimefun4.core.machines.MachineProcessor;
 import io.github.thebusybiscuit.slimefun4.core.networks.energy.EnergyNetComponentType;
@@ -42,7 +42,7 @@ import me.mrCookieSlime.Slimefun.api.SlimefunItemStack;
 import me.mrCookieSlime.Slimefun.api.inventory.BlockMenu;
 import me.mrCookieSlime.Slimefun.api.inventory.BlockMenuPreset;
 
-public abstract class AContainer extends SlimefunItem implements InventoryBlock, EnergyNetComponent, Processor<CraftingOperation> {
+public abstract class AContainer extends SlimefunItem implements InventoryBlock, EnergyNetComponent, MachineOperator<CraftingOperation> {
 
     private static final int[] BORDER = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 13, 31, 36, 37, 38, 39, 40, 41, 42, 43, 44 };
     private static final int[] BORDER_IN = { 9, 10, 11, 12, 18, 21, 27, 28, 29, 30 };
diff --git a/src/main/java/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/abstractItems/AGenerator.java b/src/main/java/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/abstractItems/AGenerator.java
index 028483de9..d40c8af19 100644
--- a/src/main/java/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/abstractItems/AGenerator.java
+++ b/src/main/java/me/mrCookieSlime/Slimefun/Objects/SlimefunItem/abstractItems/AGenerator.java
@@ -19,7 +19,7 @@ import io.github.thebusybiscuit.cscorelib2.item.CustomItem;
 import io.github.thebusybiscuit.cscorelib2.protection.ProtectableAction;
 import io.github.thebusybiscuit.slimefun4.api.SlimefunAddon;
 import io.github.thebusybiscuit.slimefun4.api.items.ItemState;
-import io.github.thebusybiscuit.slimefun4.core.attributes.Processor;
+import io.github.thebusybiscuit.slimefun4.core.attributes.MachineOperator;
 import io.github.thebusybiscuit.slimefun4.core.machines.FuelOperation;
 import io.github.thebusybiscuit.slimefun4.core.machines.MachineProcessor;
 import io.github.thebusybiscuit.slimefun4.implementation.SlimefunItems;
@@ -39,7 +39,7 @@ import me.mrCookieSlime.Slimefun.api.inventory.BlockMenu;
 import me.mrCookieSlime.Slimefun.api.inventory.BlockMenuPreset;
 import me.mrCookieSlime.Slimefun.api.item_transport.ItemTransportFlow;
 
-public abstract class AGenerator extends AbstractEnergyProvider implements Processor<FuelOperation> {
+public abstract class AGenerator extends AbstractEnergyProvider implements MachineOperator<FuelOperation> {
 
     private static final int[] border = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 13, 31, 36, 37, 38, 39, 40, 41, 42, 43, 44 };
     private static final int[] border_in = { 9, 10, 11, 12, 18, 21, 27, 28, 29, 30 };