You can add a number of different fields with information to a paragraph, as required.
However depending on the paragraph style selected, some or most of this information will only be shown in Detailed View , as the style selected may not support all fields on the main page.
You can switch to detailed view by selecting a paragraph and then clicking on the Detailed View button above the contents Window.
The same of course applies to products, which are after all just a special type of paragraph.
Click on the button again, to return to page view.