I've searche dthis forum and found the following link
(http://www.andypope.info/charts/polarplot.htm) which provides an
addd-in for polar plots. My question is  . . . how does one install
this add-in? I downloaded it and opened the doc but don't seem to see a

I have 3 individual cells that automatically update every second:
1)Time; 2) Implied Price; 3) Actual Price.  I  track the changes of the
Implied Price against the Actual Price along Time all throughout the day
(2 line graphs plotted on 1 chart).  During the day I copy and paste the

How to create a "Today's date" verfical line on a chart that moves with date
change?