You create a Boundary Line by "drawing" the bounding polygon.
Click the Create Boundary Line button
Click the corner points that define the shape of the Boundary Line.
End the operation by double clicking the left mouse button, pressing the Esc key, or clicking the right mouse button.
Change the properties (dashing) by right clicking on the Boundary line, then selecting the Properties menu item.
Boundary Line
A Boundary Line is a free style line that you can draw on the map. This line can be used to partially frame an Out of Bounds area, or it can be used for any other purpose where you need to draw a line on the map.
A Boundary Line is a so-called "polyline", defined by "corner" points.
You create a new Boundary Line by using the Course Layout Editor. In the Course Layout Editor you click the toolbar button Create Boundary Line.