I’m new to X-Plane 11 and I’m just wondering how VNAV works in regards to when you load a flight plan file into the FMS.  It looks like you can enter speeds and altitudes at each of the waypoints along the route for the autopilot to follow.  Is there also a way to set the climb and descent angle (example 3 degree climb and descent) in the FMS within the VNAV setup?  My last question is can the FMC calculate the climbs and descents based on the example of a 3 degree ascent or descent?  Lastly I am interested in the default 737 in XP 11 since I don’t want too complicated of an airplane like PMDG and FSX default 737 lacks the important functions of the FMS and VNAV functions.  It seems that the 737 in XP will provide enough detail to get effective and successful flights without being too complicated.  Thank you.

Also since I’m not updating the airac and importing current flight plans from a combination of SkyVector, Plan-G and LittleNavMap waypoints that aren’t in the default database should still load from the flight plan file, is that correct?  Thank you very much for your time.