Page 319, Section 20.6

Options control the behavior of the covergroup, coverpoint and cross. There are two types of options: those that are specific to an instance of a covergroup, and those that specify an option for the covergroup type as a whole.

Specifying value for the same option more than once in a covergroup defnition shall be an error.

The following table lists instance specific covergroup options and their description. Each instance of a covergroup can initialize an instance specific option to a different value. The initialized option value affects only that instance.