Overview
A Guide on Opening the Aircraft Doors by Walking Around the Cabin.
Basics
To Open the doors on most aircraft are pretty straight forward.
In Something simple like the 172 Skyhawk, you click on the door handle from the Virtual Cockpit.
Although with a plane such as the MD-82, it has multiple doors and are all openable by hand.
To open them, simply use your arrow keys, ‘comma’ and ‘full stop’ to move about the virtual cockpit until you get to the cockpit door, click on it to open it. Then you can walk over the the main door on the left and do the same, only this time you can extend a set of airstars to let the passengers board from there.
More doors are in the plane, go and explore yourself 😛