Causes selected lines to lie parallel to each other.
Access Methods
Button
Toolbar: Drafting tool set 
Parametric tool group Geometric Constraints flyout Parallel Menu:
Parametric
Geometric Constraints
Parallel
Summary
This command is equivalent to the Parallel option in GEOMCONSTRAINT.
Following are the valid constraint objects and points:
- Line
- Polyline segment
- Ellipse
- Multiline text