No problem; most platforms should be easily able to handle this. There are alot of platforms that even have plug ins to Esignal to allow for this on user defined price action. I know Redi+ Portfolio Trader supports all of this and does it well from experience.
that's 1999 technology we're talking about...redi+ will update their patchworked garbage to facilitate that kind of trading for you the day after the NYSE has closed its doors forever.
I have used a number of platforms out there, and I think you are exagerating a bit here. Redi is very good overall, and second to none for reliability, their tech support is very good, there data is reliable and accurate, your M2M positions are loaded and ready to go everyday prior to the open. GS is best of breed, IMO!
