The script clears the chart window from labels of order tracing.
It removes labels of only closed orders.
It clears charts in all windows opened in the terminal.
Parameters:
- Symbol: clear charts of the specified symbol. If not said, clear charts in all windows.
- Last Data : orders with a date of closure which goes after the specified one will not be deleted. If not said, tracing of all closed orders will be deleted.
- Confirmation : True - confirmation of chart clearance for each window, False - no.