When you look at the netflow info on interface page, there is an option to click the link and drill down to the detail in NFA. If you drill from protocol, you have only one option: click it and it will leave existing page and take you to the detail page. If you drill from host name, then you have two options: 1) the same as the protocol, 2) right click it, and open it in new tab or new window.
Most of the time, the option 2) is desired since we want to stay on the same page AND drill into detail in another page.
This was present in CA PC 2.8.