X-Line drawing tool allows you to place a line on your chart which extends indefinitely in any direction. It can be used to create your own trend line or trend channel. The key feature is that it extends indefinitely. This means that no matter how far into the future or past you move the chart, the line will still be visible, extending at the same angle as its origin.
In Appearance property dialog it is possible to change the appearance of an X-Line:
Sets the color, opacity, thickness and style of an X-Line.
The drop-down menu contains options of setting the line style and extending one or both line’s ends to infinity.
In Shape properties dialog you can set precisely the position of the X-Line’s end points on the price scale (by setting the price) and the time scale (by setting the bar number):
Allows for the precise placement of the extended line’s first point (Price 1) using a bar number and price.
Allows for the precise placement of the extended line’s second point (Price 2) using a bar number and price.
In View properties dialog you can switch the Price label tool displaying on charts of different timeframes: