If you want to continue drawing, click this command first, and then click the existing pile. At this time, you will find that the initial mileage of the parameter will become the existing value, and then continue to run.
In fact, Tianzheng software is still very easy to operate (is this why you don't need teaching videos? ) Just define the drawing order first and then carefully adjust it to meet the requirements?
The following is an introduction to the official orders: