Tools for drawing lines

Points.
Snap to nearby prices.
Lines drawn on the upper time axis are also drawn on the lower time axis.
Vertical lines if autoscroll is switched off,
Lines drawn on the upper time axis are also drawn on the lower time axis and simultaneously move the chart to that date and time.
When switching currency pairs, hide lines for all but that currency pair.
This is useful when the price range is the same.

Faults.
Slow.
Diagonal lines do not snap to nearby prices if a holiday falls between them.

Use and check the other functions.