LPV With Proline 21

Two clips, one with selecting VNAV and approach; The other with selecting approach only and no VNAV.

[rickr]

Can you please discuss setting up an RNAV approach and the proper steps to engage the approach mode and what Roll and Pitch modes you should look for on the PFD's during the approach. Maybe explain some pitfalls that will prevent the approach mode from engaging? Thanks!