Quote from Pippi436:
You can do such breath-calculations for example with Neoticker. It has pretty good built-in functions for this sort of analysis. You can construct your own index out of whatever instruments you choose and output any kind of breath and tick stats in realtime (using their prop. formula language, or a 'real' programming language if you got the skills).
You could also use Visual Trader although I plan on trying NT soon.