In this area, select a vertex in the graphical view of the assembly that will be used to calculate and create the requested curve; the splines are positioned at the top of the creation tree. Multiple vertices can be selected to generate as many curves as needed.

To delete a vertex, simply select it and press the " Delete" key on your keyboard. You can also right-click in the area and choose to delete all vertices or just the selected vertex.

Curve obtained using the "1 vertex" selection: