Just an addition to crowsnest......
put the opposite end ILS in the fix page (if there is one)..as this is actually located at the thresold of where you want to go....rather than the ILS localiser that is located at the far end of the rwy your gonna use. i.e if your landing on 23..use ILS for 05 in the fix..and visa-versa. (had many a confused captain look at me sideways when Ive said this..but its true!!
and it works)