ever flying there's some guide lines contained in regional procedures for EU in doc 7030. I tend to agree with the previous posts that it shouldn't be used though don't really see a big problem to connect all the way points together provided they're in the database. However that's what the relevant doc says:
FLIGHT PROCEDURES (Doc 8168) - ARRIVAL AND NON-PRECISION APPROACH PROCEDURES 1 AREA NAVIGATION (RNAV) ARRIVAL AND APPROACH PROCEDURES FOR NAVIGATION SYSTEMS USING BASIC GNSS RECEIVERS
1.2.3 Navigation database
Departure and approach waypoint information is contained in a navigation database. If the navigation database does not contain the departure or approach procedure, then the basic GNSS stand-alone receiver or FMC shall not be used for these procedures.
RNAV approaches of course must be available in the box and remain unchanged in order to fly it.
Cheers.
