-#define EL_FLAMES (EL_FIRST_RUNTIME_UNREAL + 9)
-#define EL_PLAYER_IS_LEAVING (EL_FIRST_RUNTIME_UNREAL + 10)
-#define EL_PLAYER_IS_EXPLODING_1 (EL_FIRST_RUNTIME_UNREAL + 11)
-#define EL_PLAYER_IS_EXPLODING_2 (EL_FIRST_RUNTIME_UNREAL + 12)
-#define EL_PLAYER_IS_EXPLODING_3 (EL_FIRST_RUNTIME_UNREAL + 13)
-#define EL_PLAYER_IS_EXPLODING_4 (EL_FIRST_RUNTIME_UNREAL + 14)
-#define EL_QUICKSAND_FILLING (EL_FIRST_RUNTIME_UNREAL + 15)
-#define EL_MAGIC_WALL_FILLING (EL_FIRST_RUNTIME_UNREAL + 16)
-#define EL_BD_MAGIC_WALL_FILLING (EL_FIRST_RUNTIME_UNREAL + 17)
-#define EL_ELEMENT_SNAPPING (EL_FIRST_RUNTIME_UNREAL + 18)
-#define EL_DIAGONAL_SHRINKING (EL_FIRST_RUNTIME_UNREAL + 19)
-#define EL_DIAGONAL_GROWING (EL_FIRST_RUNTIME_UNREAL + 20)
-
-#define NUM_RUNTIME_ELEMENTS (EL_FIRST_RUNTIME_UNREAL + 21)
+#define EL_EXPANDABLE_STEELWALL_GROWING (EL_FIRST_RUNTIME_UNREAL + 9)
+#define EL_FLAMES (EL_FIRST_RUNTIME_UNREAL + 10)
+#define EL_PLAYER_IS_LEAVING (EL_FIRST_RUNTIME_UNREAL + 11)
+#define EL_PLAYER_IS_EXPLODING_1 (EL_FIRST_RUNTIME_UNREAL + 12)
+#define EL_PLAYER_IS_EXPLODING_2 (EL_FIRST_RUNTIME_UNREAL + 13)
+#define EL_PLAYER_IS_EXPLODING_3 (EL_FIRST_RUNTIME_UNREAL + 14)
+#define EL_PLAYER_IS_EXPLODING_4 (EL_FIRST_RUNTIME_UNREAL + 15)
+#define EL_QUICKSAND_FILLING (EL_FIRST_RUNTIME_UNREAL + 16)
+#define EL_MAGIC_WALL_FILLING (EL_FIRST_RUNTIME_UNREAL + 17)
+#define EL_BD_MAGIC_WALL_FILLING (EL_FIRST_RUNTIME_UNREAL + 18)
+#define EL_ELEMENT_SNAPPING (EL_FIRST_RUNTIME_UNREAL + 19)
+#define EL_DIAGONAL_SHRINKING (EL_FIRST_RUNTIME_UNREAL + 20)
+#define EL_DIAGONAL_GROWING (EL_FIRST_RUNTIME_UNREAL + 21)
+
+#define NUM_RUNTIME_ELEMENTS (EL_FIRST_RUNTIME_UNREAL + 22)