Sketcher ConstrainVertical

Description
Creates a vertical constraint to the selected lines or polyline elements. As of it can also constrain vertices vertically. More than one object can be selected.

Usage

 * 1) Select the lines or vertices to be constrained vertically
 * 2) To invoke the vertical constraint command:
 * 3) * Press the Vertical constraint icon.
 * 4) * Use the keyboard shortcut
 * 5) * Use the entry in the Sketch dropdown menu
 * 6) Alternatively, the tool can be started without prior selection, and it will expect a selection; but only lines will be selectable.
 * 7) Right-click or press  once, to exit the tool.