diff --git a/golem_activity/models/golem_activity.py b/golem_activity/models/golem_activity.py
index 777ce23..bafc8f1 100644
--- a/golem_activity/models/golem_activity.py
+++ b/golem_activity/models/golem_activity.py
@@ -24,6 +24,7 @@ class GolemActivity(models.Model):
     _inherit = 'mail.thread'
 
     name = fields.Char('Name', index=True, required=True)
+    default_code = fields.Char('Internal Reference', index=True)
     image = fields.Binary('Image', help='This field holds the image used as '
                           'image for the activity.')
     note = fields.Text('Note')
diff --git a/golem_activity/views/golem_activity_view.xml b/golem_activity/views/golem_activity_view.xml
index ff3ee4f..bc6bbdf 100644
--- a/golem_activity/views/golem_activity_view.xml
+++ b/golem_activity/views/golem_activity_view.xml
@@ -36,6 +36,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
               </div>
               <group>
                 <field name="season_id" />
+                <field name="default_code" />
               </group>
             <group string="Details">
               <group>
diff --git a/golem_activity_session/models/golem_activity_session.py b/golem_activity_session/models/golem_activity_session.py
index 6e17a51..233eeb1 100644
--- a/golem_activity_session/models/golem_activity_session.py
+++ b/golem_activity_session/models/golem_activity_session.py
@@ -61,6 +61,7 @@ class GolemActivitySession(models.Model):
     _description = 'GOLEM Activities Sessions'
     _inherit = 'mail.thread'
     _inherits = {'product.template': 'product_id'}
+    _rec_name = 'session_name'
 
     product_id = fields.Many2one('product.template', required=True,
                                  ondelete='cascade')
@@ -112,6 +113,8 @@ class GolemActivitySession(models.Model):
         for s in self:
             if not s.name:
                 s.name = s.activity_id.name
+            if not s.default_code:
+                s.default_code = s.activity_id.default_code
             if not s.animator_id:
                 s.animator_id = s.activity_id.animator_id
 
@@ -160,8 +163,8 @@ class GolemActivitySession(models.Model):
     def onchange_hour_start(self):
         """ Sets end hour to start hour if no start hour """
         for s in self:
-            if not s.hour_end:
-                s.hour_end = s.hour_start
+            if s.hour_start and not s.hour_end:
+                s.hour_end = s.hour_start + 1
 
     @api.constrains('hour_start', 'hour_end')
     def _check_hour_period(self):
@@ -215,5 +218,3 @@ class GolemActivitySession(models.Model):
             if v.is_overbooked and (v.places_overbooked <= v.places):
                 emsg = _('Overbooked places cannot be inferior than places')
                 raise models.ValidationError(emsg)
-
-    note = fields.Text('Note')
diff --git a/golem_activity_session/views/golem_activity_view.xml b/golem_activity_session/views/golem_activity_view.xml
index 79a5b60..ee9fa48 100644
--- a/golem_activity_session/views/golem_activity_view.xml
+++ b/golem_activity_session/views/golem_activity_view.xml
@@ -72,7 +72,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
               <page string="Members">
                 <group>
                   <field name="places_remain" readonly="True" />
-                  <field name="member_ids" />
+                  <field name="member_ids"
+                    context="{'search_default_season_default': True}" />
                 </group>
               </page>
               <page string="Service">
@@ -90,9 +91,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
                   </group>
                 </group>
               </page>
-              <page string="Note">
-                <field name="note" />
-              </page>
             </notebook>
           </sheet>
           <div class="oe_chatter">
@@ -123,6 +121,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
           <field name="places_remain" string="Remain" />
           <field name="places_used" invisible="True" />
           <field name="places_min" invislbe="True" />
+          <field name="list_price" sum="True" />
         </tree>
       </field>
     </record>