diff --git a/golem_activity_registration_slot/models/golem_activity_registration_slot.py b/golem_activity_registration_slot/models/golem_activity_registration_slot.py
index 79ba11f..f02d0d6 100644
--- a/golem_activity_registration_slot/models/golem_activity_registration_slot.py
+++ b/golem_activity_registration_slot/models/golem_activity_registration_slot.py
@@ -24,6 +24,7 @@ from odoo.exceptions import ValidationError
 class GolemActivityRegistrationSlot(models.Model):
     """ GOLEM Activity Registration Slot """
     _name = 'golem.activity.registration.slot'
+    _order = 'sequence'
 
     _description = 'GOLEM Activity Registration Slot'
     activity_id = fields.Many2one('golem.activity', required=True,
@@ -33,6 +34,7 @@ class GolemActivityRegistrationSlot(models.Model):
                                 ondelete='cascade', index=True)
     hour_start = fields.Float('Start time')
     hour_stop = fields.Float('Stop time')
+    sequence = fields.Integer('Sequence')
 
     @api.constrains('hour_start', 'hour_stop')
     def check_slot_hours(self):
diff --git a/golem_activity_registration_slot/views/golem_activity_views.xml b/golem_activity_registration_slot/views/golem_activity_views.xml
index b1cca09..a5af9d4 100644
--- a/golem_activity_registration_slot/views/golem_activity_views.xml
+++ b/golem_activity_registration_slot/views/golem_activity_views.xml
@@ -37,6 +37,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
              <field name='slots_duration' widget='float_time'/>
              <field name='registration_slot_ids'>
                <tree editable='bottom'>
+                 <field name="sequence" widget="handle"/>
                  <field name="member_id"/>
                  <field name='hour_start' widget='float_time'/>
                  <field name='hour_stop' widget='float_time'/>