Trends are available on any measurement that has recording enabled.

You can access it from the main page, by clicking on the chart button on any of your measurement points.

To change the range of time you're focusing on, simply click on the date range directly above your chart. You'll be able to choose from a number of pre-configured options, or select 'Custom Range' and enter your own From and To dates.

On choosing a pre-made option or hitting 'Apply', your chart will be automatically reloaded with the data for that period of time.

If you want to export the chart, press the export button found at the bottom of the page.

This will allow you to save the recorded details onto your computer, where you can then open them in the package of your choice.

For example, you can export a trend and create your own graphs using Microsoft Excel or OpenOffice Calc.