Vertical
Use the Vertical constraint to constrain straight edges to be parallel to the y-axis.
Add a Horizontal constraint as follows:
1
Click the
Vertical
(
) toolbar button.
2
Select straight edges.
3
Move the pointer to position the parallel symbol, then click to place it.
The Settings window for
Vertical
contains the following section:
Edge Selection
Change the selected entities.
) toolbar button.