The page displayed is called CICS Defined rsc, where rsc is the name the type of resource you clicked.
Each row of the table gives the name of a resource of the type you selected, and gives further information that depends on the type of resource. For example, if you clicked DCT, the page displayed is called CICS Defined DCT, and lists the DCTs known to the enterprise server.
Each row also contains a Details button. Click this to display the detailed information page for the resource.