From an Array
Step 1: Switch to the Array Data Tab
Click on the charts button of an existing column. A dialog will appear where you can choose what type of data to build the chart from. Choose Array.
Step 2: Enter your Array Data
Enter your desired array data, or use existing sample array data by clicking the paste button on the right side.
You can also choose the Timeseries option if you want to easily format date/time data.
You can see other possible time formats here.
Step 3: Customize
Give your new chart a name then pick a chart type and you're good to go. Click Generate Report to finalize your work.