Need this!

[Pcindia]

Hi,
I need this kind of an indicator, Kindly advise how it can be done.

1) I should click on a point on the tick chart and the indicator should take that price as "A'.

2) Price 'A' will undergo my mathematical function and give the output 'B' which again will be price, different from 'A' .

3)The software will draw a line from 'A' to 'B'.

If you give me the advice free, I'll appreciate. If you want to charge, do mention the price.


Thanks
Prashant