Can yo do something to copy the angle of a line to the oposite to draw the same line with the same angle but to the oposite side, check the attached image.
Other add to draw a trendline with an specific angle.
Another one to check the angle of the trend lines, for example when i put the cursor in the trend line show me the angle of that line.
All of this with the option to change the color of the line and show the label of the line if i want to put something like "Montly Trend Line" show this label in the corner of the line or above or behind attached to the line in the same angle. The same thing to all lines i draw in the marketscope the option to show the label i think this can be usefull because now we need to put an text box apart of the line to show that.