view of kerbals from exterior view

[VeryBritishChild]

I just wanted to know what (if there is) the keyboard shortcut to activate that view that shows you the interior of the plane from the exterior view as seen in this photo:

If it's a mod then I'd appreciate if you informed me what the mod is called. Thanks

[Skystorm]

Do you mean this?

To turn that on/off, click on the round radio button just to the left of the crew portraits.  You need to move the mouse over the crew portraits area to see the additional controls.

This is a stock feature though not all parts necessarily support it.

Edited April 22, 2018 by Skystorm

[Vanamonde]

This question about how to play the game has been moved to Gameplay Questions. 

[VeryBritishChild]

Thanks