Bubble Line
General
- The bubble line is mainly intended to be used as a "red pencil", for example to indicate the area of the drawing to be examined or corrected.
 - Add a line by clicking two points defining the length of the bubble, and a radius point defining the width.

 
Add a bubble line
- Select Drawing | Lines | 
 Bubble. - If necessary, select line properties, such as red color.
 - Select the start point.
 - Select the end point.
 - Click the radius point.
 
