The NAV OPTIONS 2/2 (FCOM Vol2 11.42.55) page is missing the Select Desired Waypoint Page (FCOM Vol2 11.42.14) whenever trying to insert a VOR or DME that has a duplicate identifier inside the NAV Database.I'm unable to decide which navaid will be inhibited among the same identifier althought I would suppose the first on the list of Desired Waypoint Page (shown through LEGS or REF NAV DATA pages). This can be confirmed by the fact that when trying to inhibit for example PIS or ROM I'm getting INVALID ENTRY --> they are both shown as NDBs on the first row of the Select Page.Regards,Olmo Matteo DI CARLO

PMDG are well aware of this.It might be included in a future service pack.Fred.