Line 1 line with extreme point must not exceed 500 points by extreme extreme point 500 sequence is changed to the default path, with new clues and new configuration automatically.
The first line is an extreme point of not more than 500 points by extreme climax sequence is changed to 500 knots. And start a new one with the new configuration automatically.
The line 1 lined with extreme point no more than 500 extreme point by point, the 500 will turn into a knot. And start new lines with a new configuration automatically.