Index: /trunk/src/org/openstreetmap/josm/gui/dialogs/UserListDialog.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/dialogs/UserListDialog.java	(revision 4946)
+++ /trunk/src/org/openstreetmap/josm/gui/dialogs/UserListDialog.java	(revision 4947)
@@ -68,5 +68,5 @@
     public UserListDialog() {
         super(tr("Authors"), "userlist", tr("Open a list of people working on the selected objects."),
-                Shortcut.registerShortcut("subwindow:authors", tr("Toggle: {0}", tr("Authors")), KeyEvent.VK_A, Shortcut.GROUP_LAYER, Shortcut.SHIFT_DEFAULT), 150);
+                Shortcut.registerShortcut("subwindow:authors", tr("Toggle: {0}", tr("Authors")), KeyEvent.VK_A, Shortcut.GROUP_LAYER+Shortcut.GROUPS_ALT1), 150);
 
         build();
Index: /trunk/src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java	(revision 4946)
+++ /trunk/src/org/openstreetmap/josm/gui/dialogs/properties/PropertiesDialog.java	(revision 4947)
@@ -633,5 +633,5 @@
         super(tr("Properties/Memberships"), "propertiesdialog", tr("Properties for selected objects."),
                 Shortcut.registerShortcut("subwindow:properties", tr("Toggle: {0}", tr("Properties/Memberships")), KeyEvent.VK_P,
-                        Shortcut.GROUP_LAYER, Shortcut.SHIFT_DEFAULT), 150, true);
+                        Shortcut.GROUP_LAYER+Shortcut.GROUPS_ALT1), 150, true);
 
         // setting up the properties table
@@ -1040,5 +1040,5 @@
             super(tr("Delete"), "dialogs/delete", tr("Delete the selected key in all objects"),
                     Shortcut.registerShortcut("properties:delete", tr("Delete Properties"), KeyEvent.VK_D,
-                            Shortcut.GROUP_MNEMONIC), false);
+                            Shortcut.GROUP_DIRECT3+Shortcut.GROUPS_ALT1), false);
             updateEnabledState();
         }
@@ -1141,5 +1141,5 @@
             super(tr("Add"), "dialogs/add", tr("Add a new key/value pair to all objects"),
                     Shortcut.registerShortcut("properties:add", tr("Add Property"), KeyEvent.VK_A,
-                            Shortcut.GROUP_MNEMONIC), false);
+                            Shortcut.GROUP_DIRECT2), false);
         }
 
@@ -1154,5 +1154,5 @@
             super(tr("Edit"), "dialogs/edit", tr("Edit the value of the selected key for all objects"),
                     Shortcut.registerShortcut("properties:edit", tr("Edit Properties"), KeyEvent.VK_S,
-                            Shortcut.GROUP_MNEMONIC), false);
+                            Shortcut.GROUP_DIRECT2), false);
             updateEnabledState();
         }