Structural Modifiers

Structural Modifiers are controls which change how ZAP represents the structure of the application.
The Sites tab show ZAP's representation of the application.
If it is not a good representation of the structure then ZAP will not be able to attack the application effectively.
There are currently 2 types of Structural Modifiers:

Structural Modifiers can only be applied to Contexts.

See also

UI Overview for an overview of the user interface
Features provided by ZAP