transceiver design examples

If you go to <altera install dir>/ip/altera, there is a file called altera_components.ipx which manages all the metadata for your component library. I figured that if you change the "internal component" property of the component you need from TRUE to FALSE, then it will appear in the QSYS or SOPC tree on the left. However, I don't know whether the generated the component instance will work. They must be hidden for a reason!

I have a similar problem with the 10G PHY components, Altera provides reference designs for custom-PHY or low latency-PHY, however, none of the components are available from the left side component tree in QSYS. why is that?? Should they be available??