Index: app/views/groups/_form.html.erb
===================================================================
--- app/views/groups/_form.html.erb	(revision 47)
+++ app/views/groups/_form.html.erb	(revision 48)
@@ -2,6 +2,7 @@
 
 <div class="box tabular">
   <p><%= f.text_field :lastname, :label => :field_name %></p>
+  <%= call_hook(:view_groups_form, :group => @group, :form => f) %>
   <% @group.custom_field_values.each do |value| %>
     <p><%= custom_field_tag_with_label :group, value %></p>
   <% end %>