Again, thanks for the replies.
I am confused about the ALT SEL function though.
A copy/paste from AOM:
This automatically arms the Altitude Select mode. When the aircraft baro corrected altitude
approaches the Selected Altitude target, the FD automatically transitions to the Altitude Cap-
ture mode and begins to return the aircraft to level flight. When the Selected Altitude target has
been captured, the FD automatically transitions to the Altitude Hold mode and maintains the
Selected Altitude.
So when a pilot selects the target altitude, he has to switch to another mode or maneuver the aircraft himself to that altitude? What's the point of ALT SEL mode then?
Am i missing the point here?