diff --git a/source/development/user-interface/layout-template-usage.rst b/source/development/user-interface/layout-template-usage.rst
index 4939e8f01..e67221e75 100644
--- a/source/development/user-interface/layout-template-usage.rst
+++ b/source/development/user-interface/layout-template-usage.rst
@@ -139,3 +139,39 @@ See :
 - :ref:`Macros in group bundle <group-bundle-macros>` ;
 - :ref:`Macros in main bundle <main-bundle-macros>` ;
 
+Templates
+---------
+
+ChillMainBundle::Util:confirmation_template.html.twig
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This template show a confirmation template before making dangerous things. You can add your own message and title, or define those message by yourself in another template.
+
+The accepted parameters are : 
+
+- `title` (string) a title for the page. Not mandatory (it won't be rendered if not defined)
+- `confirm_question` (string) a confirmation question. This question will not be translated into the template, and may be printed as raw. Not mandatory (it won't be rendered if not defined)
+- `form` : (:class:`Symfony\Component\Form\FormView`) a form wich **must** contains an input named `submit`, which must be a :class:`Symfony\Component\Form\Extension\Core\Type\SubmitType`. Mandatory
+- `cancel_route` : (string) the name of a route if the user want to cancel the action
+- `cancel_parameters` (array) the parameters for the route defined in `cancel_route`
+
+
+Usage : 
+
+
+.. code-block:: html+jinja2
+
+       {{ include('ChillMainBundle:Util:confirmation_template.html.twig',
+           {
+               # a title, not mandatory
+               'title'             : 'Remove membership'|trans,
+               # a confirmation question, not mandatory
+               'confirm_question'  : 'Are you sure you want to remove membership ?'|trans
+               # a route for "cancel" button (mandatory)
+               'cancel_route'      : 'chill_group_membership_by_person',
+               # the parameters for 'cancel' route (default to {} )
+               'cancel_parameters' : { 'person_id' : membership.person.id },
+               # the form which will send the deletion. This form
+               # **must** contains a SubmitType
+               'form'              : form
+           } ) }}