Quote from MultiCharts website
Multiple Symbols & Timeframes , from Different Data Sources, in the Same Chart
MultiCharts features the ability to plot, in the same chart window, several dissimilar data series. The data series can be of different symbols, with different timeframes, and from different data feeds, all at once. Time-based and Count-based, as well as Bid, Ask, or Trade - based data series can be mixed within the same chart. For example, you can mix a 1-minute and a 5-minute chart, or plot a 5000-tick, a 5-point, and a 1-second chart with precise synchronization. This feature is essential for multiple timeframe, correlation, or inter-market analysis, allowing custom studies to be based on several different data series at once.