Plane would have been broken at the gate and never departed.
No, that would be the Q400. Except the broken airplane would already be the 'operational spare' that they had on hand.
Anyway... assuming you were somehow able to get the Q into the air, it would do the following.
You'd be ALT-captured at 3000, so it's not going to climb, and you're probably in HDG mode. You'd hit DTO and select NOKME, hit NAV, and the airplane would turn to that waypoint, but only after initially turning about 15 degrees in the wrong direction. It does it every time. ATC will ask you if you're turning, or just stupid.
Then you'd go to the VNAV page to set that up. Since the airplane would have back-calculated altitudes at each waypoint based on an assumed 3-degree glidepath, you have to change one of the altitudes. I'd pick the one next to NOKME, and type in 3000. Now the FMS re-calculates the other altitudes. Now if you got your approach clearance and actually wanted to come down, you spin the altitude alerter down to something that resembles the field elevation, hit the VTO button to select your waypoint you want to VNAV to, and select NOKME. Now you have a level VNAV leg between your position at 3000, and crossing NOKME at 3000. Push VNAV to arm, and it will capture a second or so later. Now simply wait for passage of each waypoint for the Q400 roller coaster to begin. It will float everyone in the back while diving to catch the glidepath as it crosses a waypoint, and then it will pull up abruptly as it figures out it over-shot. It will do this at most of the waypoints.
Oh. And every now and then.... your VNAV will simply vanish like it never existed. You'll try to reset it, and you can even force it to come back by pushing 'activate approach.' The VNAV will still come and go as it pleases. On my way into BOI the other day, the VNAV came and went at least 4 times without any action by myself or the Captain.
And one more thing. If the Captain wanted any of this displayed on their side, they'll have to do all of the typing over again. Neither side of the airplane talks to the other.