1. To create a new chart select the File-->New-->Chart Window... menu from the Control Center window.
2. A "Select Bar Series" window will appear. From this window you can:

a) Select the instrument you wish to load into the chart
b) Select the bar type minute, tick or day
c) Select the number of "days back" you wish to load historical data for
Once you press "OK", NinjaTrader will load the appropriate data into a new chart based on your default template.