On SkyDemon, you can switch them on by setting 'IFR Reporting Points' to Yes.
They are also shown on the lower level airways chart which you can download freely from NATS AIS.
I think they are much easier to use than arbitrary waypoints.
1) They are almost all in logical places
2) It is easy to 'say' them on the radio if you are asked
3) They are unambiguous and will definitely be accepted in your flight plan