Vertical lines are often used to highlight some section of time within a data series.
In Appearance property dialog it is possible to change the appearance of a Vertical Line:
Can change the color and opacity of the vertical line as well as its thickness and the line style.
When Show Text checkbox is active, a text for displaying beside the Horizontal Line may be entered in the text box. Text color and opacity, font size, bold and italic attribute may be assigned in the drop-downs next to the checkbox. Text Alignment drop-downs allow to set the text position along the Horizontal Ray.
In Shape properties dialog you can set precisely the position of the Vertical Line on the time scale by setting the bar number:
Allows for the precise placement of the vertical line using a bar number.
In View properties dialog you can switch displaying of a Vertical Line drawing on charts of different timeframes: