select the desired project in the Summary view

select the menu option Reports → Create a Graph/Plot . This brings up a configuration dialog. This dialog has three parts - Load, Save and Configure. The Load and Save portions are very similar to the corresponding dialogs for tables, discussed here. The Configure portion has two tabs, Data and Layout. The Layout tab is discussed here.

in the Data tab, check off the items you wish to include, and set the number of bins you want in the histogram.

click the OK button to create the histogram.