+/* internal elements (only used for internal purposes like copying) */
+#define EL_FIRST_INTERNAL (EL_FIRST_DUMMY + 25)
+
+#define EL_INTERNAL_EDITOR (EL_FIRST_INTERNAL + 0)
+#define EL_INTERNAL_DUMMY (EL_FIRST_INTERNAL + 1)
+
+#define MAX_NUM_ELEMENTS (EL_FIRST_INTERNAL + 2)