Some of us need to look at a google image for a second. Unlike many other types, there IS NO Flight ALt "Window" displaying the "000" or Alt at all. It's just a knob on the panel and all the actual figures are on screen in a Q400.
Alt Sel was always a Pain..... when I moved onto it the heading bugs weren't even synced on both sides. Still, a very capable and powerful beast.
3,500hrs on type before anyone wonders. Can't fathom how this happened though if the crew were paying attention. The Q400 requires concentration at all times. You simply cannot leave it alone. and you do need your feet on the pedals as well.
Happily a long way from the things now.