How to add a breakline to a survey edit

Once you have the survey edit you'd like to apply the breakline to, please follow these steps:

1. Click and drag to edit a position.

2. Click the (+) icon to add a position.

3. Shift-click to add a breakline or crease; right-click to finish it. 

4. Hold ctrl and click (-) to remove a position. 

5. Right-click to finish drawing.