When you save a chart, now you have the option to save the chart to your box.com a/c.
here is a brief method: http://www.box.com/services/flowchartcom
To save your chart to Box, Create a chart or open a previous chart you created, from the Save Menu choose “Save to box.com” if you are doing this for the 1st time, a pop up window will display a login window for logging into your Box account. Each consecutive save, you will not have to input your Box account information. All files are saved in the Flowchart.com charts folder in your Box account.