Where is the Zoom In and Out control

[MeatEtr]

Damn, wish the external cam key didn't give the AI control of the plane automatically. This was puzzling me for awhile, since I couldnt get control back of my own plane by clicking the AI control(A key) or cockpit view key. Only way to get back control was to use the alt-F1 keys to "take control of AI plane".

So I guess only way to have a free roam external cam is to give your plane to the AI. Or am I missing something? RIght now I'm using the external follow key, but want to move camera around. I swear the controls are even more confusing than the original IL2. Way too much trial and error for this returning IL2 player.