--- a/cagou/core/cagou_main.py	Sun Apr 29 13:10:14 2018 +0200
+++ b/cagou/core/cagou_main.py	Sun Apr 29 14:56:29 2018 +0200
@@ -121,6 +121,7 @@
     manager = properties.ObjectProperty()
     notifs_icon = properties.ObjectProperty()
     notes = properties.ListProperty()
+    HEIGHT = dp(35)
 
     def __init__(self):
         super(RootHeadWidget, self).__init__()
@@ -174,8 +175,8 @@
     def __init__(self, main_widget):
         super(CagouRootWidget, self).__init__()
         # header
-        self._head_widget = RootHeadWidget()
-        self.root_body.add_widget(self._head_widget)
+        self.head_widget = RootHeadWidget()
+        self.root_body.add_widget(self.head_widget)
         # body
         self._manager = ScreenManager()
         # main widgets
@@ -215,13 +216,13 @@
 
     def newAction(self, handler, action_data, id_, security_limit, profile):
         """Add a notification for an action"""
-        self._head_widget.addNotif(handler, action_data, id_, security_limit, profile)
+        self.head_widget.addNotif(handler, action_data, id_, security_limit, profile)
 
     def addNote(self, title, message, level):
-        self._head_widget.addNote(title, message, level)
+        self.head_widget.addNote(title, message, level)
 
     def addNotifUI(self, ui):
-        self._head_widget.addNotifUI(ui)
+        self.head_widget.addNotifUI(ui)
 
 
 class CagouApp(App):
@@ -302,6 +303,14 @@
             else:
                 Animation(height=menu.HEIGHT, duration=0.3).start(menu)
             return True
+        elif key == 110 and modifier == ['alt']:
+            # M-n we hide/show notifications
+            head = self.root.head_widget
+            if head.height:
+                Animation(height=0, opacity=0, duration=0.3).start(head)
+            else:
+                Animation(height=head.HEIGHT, opacity=1, duration=0.3).start(head)
+            return True
         else:
             return False
 

--- a/cagou/kv/root_widget.kv	Sun Apr 29 13:10:14 2018 +0200
+++ b/cagou/kv/root_widget.kv	Sun Apr 29 14:56:29 2018 +0200
@@ -59,7 +59,7 @@
     manager: manager
     notifs_icon: notifs_icon
     size_hint: 1, None
-    height: dp(35)
+    height: self.HEIGHT
     IconButton:
         source: app.expand("{media}/icons/muchoslava/png/cagou_profil_bleu_48.png") if root.notes else ''
         allow_stretch: True