Footprint charts do more than just show the order flow within individual bars. They can also identify order flow for an entire day. The concept is the same, but on a larger scale. As you can see from this chart, the advantages to reading order flow are HUGE for any instrument that offers volume information, including stocks. This 20-cent range bar chart of Apple's stock has a special indicator added that does nothing more than add up the day's net order flow activity.
Click the chart to see how this works. The patterns are simple. The information is extremely powerful.