Learjet 45 VNV

Hello everybody.

Has anybody managed to use the VNV button for a descent on the Learjet?

I have tried in many ways but cannot figure out how to use it. The NAV works fine and follows the path on the FMS flight plan but the VNV is still a mystery to me considering there are no altitudes shown on the FMS.

Thanks in advance for any help on this amazing aircraft.

Quote from Jet-Pack (IPACS)

The CDU doesn't show the FMS altitudes yet but it should still work.

When at cruise altitude set a lower selected altitude in the autopilot, then push the VNV button to arm the VNAV path mode. Once you intercept the profile it should start descending.

Thank you Jan. I will try again and see how it goes. I wasn't sure if it could actually be used.