When you right click in the source pane, a pop-up menu appears:
This is the default behavior. If you have configured the right-click to perform other functions, the pop-up menu will not appear.
This menu is context-sensitive, and depends on the object you click. Different objects in the source pane have different corresponding pop-up menus. Some of the menu items may be grayed out which means they are unavailable given the context.
When we discuss the pop-menus below, we use the term "right-clicked line" to refer to the source line where you've just right-clicked.
The pop-up menu has a title to show some basic information about the object.