The third tab of the manual entry form contains the requested benefit information.

The Benefit tab.
In most cases the request will only contain a request for Service Type Code 30 - Health Benefit Plan Coverage. It is expected that the carrier will return all the available benefits and enable the provider to find if the patient has the applicable coverage.

Service Type Code "30."
But then the 270 transaction is also capable to transmit very specific benefit related information.

The request benefits tab with a general benefit request and a more specific benefit request.
The 270 can contain requests for multiple benefits. In the HIPAA Eligibility Checker the individual benefit lines are listed in a table at the bottom of the form. After you have saved one benefit to the request, you can click on the little Plus sign and the text fields will be cleared and ready for the next line. You can also highlight a benefit request line and delete it by clicking on the red "X."

Unneeded benefits can be removed from the requested benefit list.