Josh is correct it's not possible as for cross and you need to Rx and Tx at the same time and this radio it's not possible...
If you search on the network channels for NB9D where they have set up repeater systems using this radio and network.
They do show most days on Vero UK at about 18:00 to 19:30 UK time most days.
I looked date trying the locking of network to a frequency but that locks the frequency on each radio to that group.
These features are on the Android app only.
Hope that helps.
Min Standen G0JMS