Vertical Line
It represents a vertical line drawn from the top edge to the bottom edge of the chart area. To add the line to the chart, simply click on the position on the chart where you want to place it. After adding the line to the chart, you can move it by clicking on the line itself to select it and then dragging it to the new position while holding down the left mouse button.
Settings
Appearance - Settings related to the drawing mode
Color - Color of the line
Line Style - Line drawing style
Line Thickness - Thickness of the line
Font - Font used to draw the text associated with the line
Text Alignment - Alignment of the text associated with the line with respect to the line itself
Line - Settings related to the line drawn on the Chart
X-Axis Position - Position of the line with respect to the X-axis, expressed in bar number