The procedure below describes how to create a line that is parallel to an existing line. The new line and the existing line are mutually constrained. The new line can also be constrained by additional entities in the graphical display area.
Note: If the existing line is not in the current sketch, you must add it to the sketch as a reference entity.
To create a line parallel to an existing line:
Select the Line
tool 
.
The cursor appears in the graphical display
area as a crosshair-and-line 
.
Right-click to display the popup menu and select the Parallel option.
Click on an existing line and move the cursor away from it.
Note: Instead of using the popup menu, you can click the entity when the parallel constraint is activated - a dashed cyan line. See Alignment with Existing Entities.
The image of a new parallel line appears. It has the same length as the selected line.
You can define an additional constraint for the new line.
Click to define the position for the start point.
Move the cursor and change the length or direction of the new line.
Click to define the end point.
Tip: Dynamic constraint lines can help you position the new line relative to the XY axis or other entities.
Note: After a parallel line has been placed, the line default option (Pt) is automatically selected again in the popup menu, ready to create continuous lines from points. If you want to create more parallel lines, you must select the Parallel option again.
If you do not want the lines to be continuous, press the middle mouse button to disconnect them.