diff --git a/base_group_backend/__manifest__.py b/base_group_backend/__manifest__.py
index 6b4af75f2..df336869c 100644
--- a/base_group_backend/__manifest__.py
+++ b/base_group_backend/__manifest__.py
@@ -12,6 +12,8 @@
         "base",
         "base_install_request",  # weird module, we need to survive with it
         "mail",
+        "calendar",
+        "spreadsheet_dashboard",
     ],
     "maintainers": ["FranzPoize", "bealdav"],
     "demo": [
diff --git a/base_group_backend/data/ir_ui_menu.xml b/base_group_backend/data/ir_ui_menu.xml
index a8a80e106..d64b2168b 100644
--- a/base_group_backend/data/ir_ui_menu.xml
+++ b/base_group_backend/data/ir_ui_menu.xml
@@ -4,5 +4,10 @@
         <!-- Allow to avoid to display App menu for backend users  -->
         <field name="groups_id" eval="[(4, ref('base.group_user'), 0)]" />
     </record>
+    <record model="ir.ui.menu" id="spreadsheet_dashboard.spreadsheet_dashboard_menu_root">
+        <!-- Allow to avoid to display Dashboard menu for backend users  -->
+        <field name="groups_id" eval="[(4, ref('base.group_user'), 0)]" />
+    </record>    
+        
 
 </odoo>
diff --git a/base_group_backend/security/ir.model.access.csv b/base_group_backend/security/ir.model.access.csv
index 1746a2398..5f7b6aae9 100644
--- a/base_group_backend/security/ir.model.access.csv
+++ b/base_group_backend/security/ir.model.access.csv
@@ -31,3 +31,5 @@ backend_ui_users_res_partner_industry,backend_ui_users_res_partner_industry,base
 backend_ui_users_res_users_identitycheck,backend_ui_users_res_users_identitycheck,base.model_res_users_identitycheck,group_backend_ui_users,1,1,1,0
 backend_ui_users_res_bank,backend_ui_users_res_bank,base.model_res_bank,group_backend_ui_users,1,0,0,0
 backend_ui_users_res_partner_bank,backend_ui_users_res_partner_bank,base.model_res_partner_bank,group_backend_ui_users,1,0,0,0
+backend_ui_users_res_calendar_event,backend_ui_users_res_calendar_event,calendar.model_calendar_event,group_backend_ui_users,1,0,0,0
+backend_ui_users_res_calendar_attendee,backend_ui_users_res_calendar_attendee,calendar.model_calendar_attendee,group_backend_ui_users,1,0,0,0