In your web screens you can create a check box that the end-user can check or un-check. This data is then stored in a variable that you can handle in your eSpace. This behavior is implemented by the Check Box widget.
You should use this widget when, for example:
you want to gather boolean values;
you want to enable or disable an option.
This widget has Ajax capabilities. Learn more About Rich Web Screens using Ajax.
Layout of Widgets | Check Box Widget Properties | Apply Web Styles