The CRJ does not take the MSFS flightplan. You have to enter it into the FMS manually or import it from SimBrief (or other third party app) via the pilot route menu in the FMS.
If you just make a flightplan on the worldmap, the CRJ will not have that.
The taxi lights are in the wing. There are two lights in each wing fairing - one for taxi, and one for landing. There is a single light on the nose gear that is controlled by the center switch between the two landing light switches.
The autopilot works correctly SPD and VS are two different ways of managing vertical path, you can use one or the other, not both at the same time.