Use the top navigation bar icon or scroll down from the map to access the charting area.
Default charts are displayed once data has been selected. These can be edited using the chart toolbar. The Expand icon launches a pop-up window where you can further edit the charts and export them as PNEG files.
You can also click on Generate New Chart for further customisation. In this window there is the option to Save a Template which allows you to save your custom charts to load again in the future. To access these saved templates navigate to Generate New Chart - Saved Templates.