The fnDeleteAllVerticalLines function is used to programatically delete all vertical lines from a price chart.
After the fnDeleteAllVerticalLines function has been added to a Drawing, it is configured by clicking the (+) button along the bottom of the Element.
The fnDeleteAllVerticalLines function does not require any parameters.
Note: Any and all vertical lines are deleted from the price chart. This includes vertical lines created both manually and programatically.
