GCSYMMETRIC command
Constrains a symmetric geometric constraint on 2D entities.
            Icon: 
Description
Creates a symmetric constraint to ensure two entities remain symmetric with respect to a selected line.
Methods to create a symmetric constraint
There are two methods to begin creating a symmetric constraint:
         - Select first entity
 - 2Points
 
- Select First Entity
 - Begin creating a symmetric constraint by selecting a 2D entity then:
 - Select Second Entity
 - Select an entity to make symmetric to the first entity then:
 - Select Line of symmetry:
 - Select a line to act as a mirror line between the two entities. The first entity maintains its position while the second entity adjusts, as necessary, to become symmetric about that line.
 - 2Points
 - Begin creating a symmetric constraint by selecting a valid point on a 2D entity then:
 - Select second point
 - Select a second valid point on a 2D entity to make symmetric with the first point.
 - Select line of symmetry
 - Select a line to act as a mirror line between the two entities. The first point maintains its position while the second point adjusts, as necessary, to become symmetric about that line.