Hi, I use MultiCharts which has a recalculation command to force recalculation of your studies. I trigger it for a specific study by setting a global variable from my database program. My Discressionary strategy is such that I could not use a software without this recalculation command. If I am not wrong TradeStation does not have this command. Not that I want to switch from MultiCharts, but I am curious, are their any other good softwares that do have this command. Thanks, John.