diff --git a/app/controllers/configurations_controller.rb b/app/controllers/configurations_controller.rb
--- a/app/controllers/configurations_controller.rb
+++ b/app/controllers/configurations_controller.rb
@@ -7,6 +7,7 @@
   def index
     @configurations = GraderConfiguration.find(:all,
                                          :order => '`key`')
+    @group = GraderConfiguration.pluck("grader_configurations.key").map{ |x| x[0...(x.index('.'))] }.uniq.sort
   end
 
   def reload