The Line Editor tool allows alterations to be made to an existing Design Line accessed from the Line Edit menu option, the following dialog appears detailing the active Design Lines content.
Using the button at the bottom left of the dialog allows multiple selection of lines in the drawing. Left clicking each line and confirming with the Right Click brings back the Line Editor dialog but with all the lines highlighted in the view.
The purpose of the Select Lines is to allow multiple property changes for multiple lines. After highlighting the line(s), Right Clicking shows the following menu. Multiple properties are now available to be changed collectively for the highlighted rows.
Selecting a New > # Size will prompt to enter a Constraint Description for the Constraint (text or a value). This Constraint name is used in the Line Editor view once applied to the line(s).
From here you can access the Define Constraint dialog by clicking the properties icon above the description field .This is used to dictate line Thickness, Color, Shape and other Restrictions which are discussed in more detail in the Constraint Manager Help Topic.