diff --git a/Setting-up-the-config-file.md b/Setting-up-the-config-file.md
index dea1bd9..20c3585 100644
--- a/Setting-up-the-config-file.md
+++ b/Setting-up-the-config-file.md
@@ -55,7 +55,7 @@ I recommended leaving the update notifications on, and disabling commands like `
 
 ## classes ##
 
-The `classes`-section is slightly more complicated. It is divided into _class-branches_, where each branch denotes the _name of the class_, and each branch has an `items`-node and an `armor`-node. These nodes specify which items and armor pieces each class has, respectively.
+The `classes`-section is slightly more complicated. It is divided into _class-branches_, where each branch denotes the _name of the class_, and each branch has an `items`-node, an `armor`-node, and an optional 'permissions'node. These nodes specify which items and armor pieces each class has, as well as any extra permissions.
 
 The items can be written as either their [data value/type id](http://www.minecraftdatavalues.com/js.php), or as their [Material name/type](http://jd.bukkit.org/apidocs/org/bukkit/Material.html). They are written in the form `<item>:<amount>`. If the colon and amount are left out, the amount will default to 1. In this example, the **Archer** gets a wooden sword, a bow, 128 arrows and a grilled porkchop from his `items`-node (in Material names), and leather armor from his `armor`-node (in data values). Conversely, the **Knight** gets only a diamond sword (note how if there is only _one_ item, that item _must_ be enclosed in apostrophes!), written in data values, as well as iron armor, written in Material names.
 
@@ -63,6 +63,9 @@ The items can be written as either their [data value/type id](http://www.minecra
         Archer:
             items: wood_sword, bow, arrow:128, grilled_pork
             armor: 298,299,300,301
+            permissions:
+                EffectiveArrows.use.*: true
+                mobarena.use.leave: false
         Knight:
             items: '276'
             armor: iron_helmet, iron_chestplate, iron_leggings, iron_boots
@@ -72,6 +75,10 @@ The items can be written as either their [data value/type id](http://www.minecra
 
 I recommend using the data values, because it is much less prone to error. It is very easy to miss a letter or type a wrong name when using Material names.
 
+### Class-based permissions ###
+
+Using the optional 'permissions'-node, you can give classes special permissions to customize them even more. In the example above, the **Archer** class will be able to use the EffectiveArrows plugin, but won't be able to use `/ma leave` (meaning it's impossible to leave the arena without dying).
+
 ### Pet classes ###
 
 For every bone (Material name: `bone`, data value: `352`) in a class' items-list, one wolf pet will spawn upon arena start. In the example above, every player that picks the **Wolf Master** class will have 2 wolves spawn upon arena start. The wolves are invincible, but deal less damage than normal wolves.