keycode: We need an UNDO key symbol

diff --git a/Kernel/include/keycode.h b/Kernel/include/keycode.h
index 3e5d2d9..6a81895 100644 (file)
--- a/Kernel/include/keycode.h
+++ b/Kernel/include/keycode.h
@@ -42,6 +42,7 @@
 #define KEY_PGUP       ESC('<')
 #define KEY_EDIT       ESC('E')
 #define KEY_END                ESC('N')
+#define KEY_UNDO       ESC('U')
 
 #define KEY_F1         ESC('1')
 #define KEY_F2         ESC('2')