I’m flying a flight plan to a destination airport. Prior to arriving, I add via the PROC key an RNAV approach with an appropriate IAF. I continue to navigate normally, with my next waypoint active, and then a “fence” followed by the first segment of the approach. I have the soft key “activate approach” available.

If I activate the approach, the FPL removes the “fence”, and the resulting flight plan has the current waypoint, followed by the IAF. It then shows the approach, with the first waypoint repeated. The second copy of the waypoint has an altitude restriction, while the first does not.

If I select the second waypoint and activate it, the IFD changes into GPS->LNAV+V. If I do not, when I reach this waypoint, the IFD cycles to the next waypoint in the approach, and the GPS->LNAV+V appears.