Upon starting the sim you are presented with 4 main choices from this screen:

Main screen

Let's look at these options from the top:

Learn to Fly Flight School
  1. Lessons
  2. Flight Simulator Help
  3. Pilot Training

The lessons are not listed in order of difficulty, which can be a little confusing. The first lesson listed is "Introductory Flight Boeing 737-400" .... which might be a little intimidating for your first flight !

Half way down the list I found "Introductory Flight, Day VFR : Cessna Skylane 182".

Select a Flight
Create a Flight You are then presented with Aircraft:

I tried the Bell 206B JetRanger
Multiplayer I didn't try Multiplayer.