Index: /trunk/src/org/openstreetmap/josm/tools/PlatformHookOsx.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/tools/PlatformHookOsx.java	(revision 19204)
+++ /trunk/src/org/openstreetmap/josm/tools/PlatformHookOsx.java	(revision 19205)
@@ -18,6 +18,4 @@
 import java.net.URISyntaxException;
 import java.nio.charset.StandardCharsets;
-import java.security.KeyStoreException;
-import java.security.NoSuchAlgorithmException;
 import java.security.cert.CertificateException;
 import java.security.cert.CertificateFactory;
@@ -271,17 +269,17 @@
         Shortcut.registerSystemShortcut("system:redo", tr(reserved), KeyEvent.VK_Z, InputEvent.META_DOWN_MASK | InputEvent.SHIFT_DOWN_MASK); // Reverse the effect of the last Undo command (equivalent to the Redo command). See "The Edit Menu."
 
-        auto(Shortcut.registerSystemShortcut("apple-reserved-45", tr(reserved), KeyEvent.VK_RIGHT, InputEvent.META_DOWN_MASK)); // Change the keyboard layout to current layout of Roman script.
+        //auto(Shortcut.registerSystemShortcut("apple-reserved-45", tr(reserved), KeyEvent.VK_RIGHT, InputEvent.CTRL_DOWN_MASK)); // Move cursor to end of line
         //auto(Shortcut.registerSystemCut("apple-reserved-46", tr(reserved), KeyEvent.VK_RIGHT, KeyEvent.META_DOWN_MASK | KeyEvent.SHIFT_DOWN_MASK)); // Extend selection to the next semantic unit, typically the end of the current line.
         //auto(Shortcut.registerSystemCut("apple-reserved-47", tr(reserved), KeyEvent.VK_RIGHT, KeyEvent.SHIFT_DOWN_MASK)); // Extend selection one character to the right.
         //auto(Shortcut.registerSystemCut("apple-reserved-48", tr(reserved), KeyEvent.VK_RIGHT, KeyEvent.ALT_DOWN_MASK | KeyEvent.SHIFT_DOWN_MASK)); // Extend selection to the end of the current word, then to the end of the next word.
 
-        Shortcut.registerSystemShortcut("system:movefocusright", tr(reserved), KeyEvent.VK_RIGHT, InputEvent.CTRL_DOWN_MASK); // Move focus to another value or cell within a view, such as a table. See Accessibility Overview.
-
-        auto(Shortcut.registerSystemShortcut("apple-reserved-49", tr(reserved), KeyEvent.VK_LEFT, InputEvent.META_DOWN_MASK)); // Change the keyboard layout to current layout of system script.
+        Shortcut.registerSystemShortcut("system:movefocusright", tr(reserved), KeyEvent.VK_RIGHT, InputEvent.META_DOWN_MASK); // Move focus to another value or cell within a view, such as a table. See Accessibility Overview.
+
+        //auto(Shortcut.registerSystemShortcut("apple-reserved-49", tr(reserved), KeyEvent.VK_LEFT, InputEvent.META_DOWN_MASK)); // Move cursor to start of line
         //auto(Shortcut.registerSystemCut("apple-reserved-50", tr(reserved), KeyEvent.VK_LEFT, KeyEvent.META_DOWN_MASK | KeyEvent.SHIFT_DOWN_MASK)); // Extend selection to the previous semantic unit, typically the beginning of the current line.
         //auto(Shortcut.registerSystemCut("apple-reserved-51", tr(reserved), KeyEvent.VK_LEFT, KeyEvent.SHIFT_DOWN_MASK)); // Extend selection one character to the left.
         //auto(Shortcut.registerSystemCut("apple-reserved-52", tr(reserved), KeyEvent.VK_LEFT, KeyEvent.ALT_DOWN_MASK | KeyEvent.SHIFT_DOWN_MASK)); // Extend selection to the beginning of the current word, then to the beginning of the previous word.
 
-        Shortcut.registerSystemShortcut("system:movefocusleft", tr(reserved), KeyEvent.VK_LEFT, InputEvent.CTRL_DOWN_MASK); // Move focus to another value or cell within a view, such as a table. See Accessibility Overview.
+        Shortcut.registerSystemShortcut("system:movefocusleft", tr(reserved), KeyEvent.VK_LEFT, InputEvent.META_DOWN_MASK); // Move focus to another value or cell within a view, such as a table. See Accessibility Overview.
 
         //auto(Shortcut.registerSystemCut("apple-reserved-53", tr(reserved), KeyEvent.VK_UP, KeyEvent.META_DOWN_MASK | KeyEvent.SHIFT_DOWN_MASK)); // Extend selection upward in the next semantic unit, typically the beginning of the document.
@@ -289,5 +287,5 @@
         //auto(Shortcut.registerSystemCut("apple-reserved-55", tr(reserved), KeyEvent.VK_UP, KeyEvent.ALT_DOWN_MASK | KeyEvent.SHIFT_DOWN_MASK)); // Extend selection to the beginning of the current paragraph, then to the beginning of the next paragraph.
 
-        Shortcut.registerSystemShortcut("system:movefocusup", tr(reserved), KeyEvent.VK_UP, InputEvent.CTRL_DOWN_MASK); // Move focus to another value or cell within a view, such as a table. See Accessibility Overview.
+        Shortcut.registerSystemShortcut("system:movefocusup", tr(reserved), KeyEvent.VK_UP, InputEvent.META_DOWN_MASK); // Move focus to another value or cell within a view, such as a table. See Accessibility Overview.
 
         //auto(Shortcut.registerSystemCut("apple-reserved-56", tr(reserved), KeyEvent.VK_DOWN, KeyEvent.META_DOWN_MASK | KeyEvent.SHIFT_DOWN_MASK)); // Extend selection downward in the next semantic unit, typically the end of the document.
@@ -295,5 +293,8 @@
         //auto(Shortcut.registerSystemCut("apple-reserved-58", tr(reserved), KeyEvent.VK_DOWN, KeyEvent.ALT_DOWN_MASK | KeyEvent.SHIFT_DOWN_MASK)); // Extend selection to the end of the current paragraph, then to the end of the next paragraph (include the blank line between paragraphs in cut, copy, and paste operations).
 
-        Shortcut.registerSystemShortcut("system:movefocusdown", tr(reserved), KeyEvent.VK_DOWN, InputEvent.CTRL_DOWN_MASK); // Move focus to another value or cell within a view, such as a table. See Accessibility Overview.
+        Shortcut.registerSystemShortcut("system:movefocusdown", tr(reserved), KeyEvent.VK_DOWN, InputEvent.META_DOWN_MASK); // Move focus to another value or cell within a view, such as a table. See Accessibility Overview.
+
+        auto(Shortcut.registerSystemShortcut("apple-reserved-59", tr(reserved), KeyEvent.VK_DOWN, InputEvent.CTRL_DOWN_MASK)); // Show all windows of the front app
+        auto(Shortcut.registerSystemShortcut("apple-reserved-60", tr(reserved), KeyEvent.VK_UP, InputEvent.CTRL_DOWN_MASK)); // Mission control
 
         auto(Shortcut.registerSystemShortcut("system:about", tr(reserved), 0, -1)); // About
@@ -374,5 +375,5 @@
     @Override
     public X509Certificate getX509Certificate(NativeCertAmend certAmend)
-            throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException {
+            throws IOException {
         for (String macAlias : certAmend.getNativeAliases()) {
             try {