Question regarding systems.

I was just reading "Propulsion Plays" in the book Mastering the Trade. This play was to to wait till a 8-day EMA crosses over a 21-day EMA then buy when the stock pullbacks to the 8-day EMA.

How could one accomplish this? Is there anyway to set up these parameters in any trading platform? I use IB so details on this platform would be best but please let me know if this could be done anywhere.

I know one could program this using IB's API but Im wondering if these sort of "systems" are standard anywhere.

Thanks!!!!