Index: trunk/src/org/openstreetmap/josm/gui/dialogs/LayerListDialog.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/dialogs/LayerListDialog.java	(revision 4710)
+++ trunk/src/org/openstreetmap/josm/gui/dialogs/LayerListDialog.java	(revision 4711)
@@ -443,5 +443,5 @@
             putValue(SHORT_DESCRIPTION, tr("Toggle visible state of the selected layer."));
             putValue("help", HelpUtil.ht("/Dialog/LayerList#ShowHideLayer"));
-            putValue(ACCELERATOR_KEY, Shortcut.registerShortcut("core_multikey:showHideLayer", "", 'S', Shortcut.GROUP_DIRECT, KeyEvent.ALT_DOWN_MASK + KeyEvent.CTRL_DOWN_MASK).getKeyStroke());
+            putValue(ACCELERATOR_KEY, Shortcut.registerShortcut("core_multikey:showHideLayer", "", 'S', Shortcut.GROUP_DIRECT, KeyEvent.SHIFT_DOWN_MASK).getKeyStroke());
             if (init) {
                 updateEnabledState();
@@ -630,5 +630,5 @@
             putValue(SMALL_ICON, ImageProvider.get("dialogs", "activate"));
             putValue(SHORT_DESCRIPTION, tr("Activate the selected layer"));
-            putValue(ACCELERATOR_KEY, Shortcut.registerShortcut("core_multikey:activateLayer", "", 'A', Shortcut.GROUP_DIRECT, KeyEvent.SHIFT_DOWN_MASK + KeyEvent.ALT_DOWN_MASK).getKeyStroke());
+            putValue(ACCELERATOR_KEY, Shortcut.registerShortcut("core_multikey:activateLayer", "", 'A', Shortcut.GROUP_DIRECT, KeyEvent.SHIFT_DOWN_MASK).getKeyStroke());
             putValue("help", HelpUtil.ht("/Dialog/LayerList#ActivateLayer"));
         }