No VORDME type when adding Airways

Greetings,

I was learning how to use the FMS tonight when I noticed something odd. When I put in VOR as a waypoint, select the waypoint, then select "Info" it gives me the freq that I can use to tune NAV 1 or 2.

However, when I add a Victor Airway this does not happen. As an example I add V448 from Mules which ends at OED I think. When selecting any of the VOR's in the flight plan they all have a freq of 0.00. Is this a bug? Or is this by function? If it's expected behavior, using the airway method would seem kind of useless for people like me that use the FMS to look up the freqs.

Anyone have any thoughts on this?

This is for the Majestic DASH-8

Thanks,

-Matt