When i whach the wingview on my airplanes i se the wing and the engines from the forward part of the plane. But i have seen on Youtube films that many have wingviews from the center or rear of the wing if you know what i mean.

How do i get this? Is it some kind of add on download?

What you are looking for is FS Recorder: http://www.fs-recorder.net. ; You can set custom viewpoints and cruise around from whatever you angle you wish.  Just be sure to know your shortcuts and don't forget to create your custom views:
v - to change views
shift enter/delete to pan up or down.
Cntl enter/delete to move left and right (or backwards and forward, can't remember which).
cntl+shift enter/delete for more movements.

And of course, you can pan around with your hat switch on your joystick if you have one.

Should be good to go then!

Try this for a 747:-[VIEWS]
VIEW_FORWARD_WINDOWS=MAIN_PANEL,GPS_PANEL,40

VIEW_REAR_LEFT_EYE=-1.000, -1.100, -4.000
VIEW_REAR_LEFT_DIR=7.000, 0.000, 225.000

VIEW_REAR_RIGHT_EYE=1.900, -1.100, -4.000
VIEW_REAR_RIGHT_DIR=7.000, 0.000, 135.000
//------------------------------------------------------------------------------
----------------------
//VIEW_LEFT_EYE=6.000, -2.400, -28.000 //LR View Option 1
//VIEW_LEFT_DIR=1.000, 0.000, 260

//VIEW_RIGHT_EYE=-4.800, -2.400, -28.000
//VIEW_RIGHT_DIR=1.000, 0.000, 100
//------------------------------------------------------------------------------
----------------------
VIEW_LEFT_EYE=6.000, -2.400, -32.000 //LR View Option 2
VIEW_LEFT_DIR=5.000, 0.000, 268

VIEW_RIGHT_EYE=-4.800, -2.400, -32.000
VIEW_RIGHT_DIR=5.000, 0.000, 92
//------------------------------------------------------------------------------
----------------------
VIEW_FORWARD_LEFT_EYE=1.300, -2.500, -55.000
VIEW_FORWARD_LEFT_DIR=3.000, 0.000, 308.000

VIEW_FORWARD_RIGHT_EYE=-0.300, -2.500, -55.000
VIEW_FORWARD_RIGHT_DIR=3.000, 0.000, 52.500
//------------------------------------------------------------------------------
----------------------
VIEW_REAR_EYE=2, -1.7, -12 //Engines
VIEW