So, let me clear my point of view here.
I've just bought SB Pro (full license) couple of days ago. Installed it and mapped my controller. I tried to find a view and turret setting in the controls but I did not find anything so I jumped into the range to see if it was mapped automatically to an axis and yes, it was.
Then I saw a PiP feature in the M1A2 (exactly the tank I have joined to test if the axis was automatically assigned) so I thought it has to be possible. It is pretty disappointing that I have to read that this is not possible.
I am sorry but for a simulation which cost around 120€ this is a huge weakspot in my opinion. I don't know any other simulation where this is not possible. The absolutly "no go" here is that you as a developer cannot admit that this is just an old design pattern which is out-dated (probably SB1 area).
I don't want to fight against the SB community. I know - you love your sim, you are a small community and anything but cm'on. No seperate view/turret setting for joystick/gamepad users? 2016? It has absolutly nothing to do with entertainment. It is just the fact that you cannot seperate a view/turret axis in a tank simulation....
It is like Major_Fubar has said in the post which Splash has referred to. It gives you a better situational awareness, you are not forced to have a huge green monitor infront of you all the time and as a "entertainment" plus, it adds more immersion to the simulation. Even if it does not apply to every vehicle which don't have any PiP... I can just repeat myself:
You should be able to seperate view and turret control in a tank simulation which costs around 120- 130€.