So, firstly I am assuming you mean the 111 in cliffs of dover.
The controls you set (position#1,#2 etc) are contained in the controls menu under "Views" i think. You may need to rebind them as some keyboards look different to the game than others (one of my keys for instance is seen as OEM102 rather than Ctrl). Once you are happy that the key combination you have chosen is working, you need to first save the profile and then apply it using the buttons on the lower right of the screen.
You will also need to bind a key to take control of the gun with the mouse (F10 by default i think) if yu are not usng the mouse to look around already and also to lean to the gunsight (same command as in th fighters). If you switch back to pilot remember to disengage F10 unless you use the mouse to look around. With the 111 and blenheim you will also have to bind keys to move the mountng up/down/left/right (not the gun, the mounting). Thats very clunky at present sadly. If fact the 111 turret system is all very clunky TBH. Unlike the 110s there is no relod annimation so its also a caseof hitting relaod and pressing the fire button until it starts to fire again. I really hope a better solution has been found for thr FN turrets in the upcomming Wellington.
Finally you may want to adjust your mouse speed (RTS mouse) in the conf.ini file in the 1C soft club folder in your Documents to something like 1.5 as this will give you faster movement. Using the buttons on your mouse to reload and fire is also useful (but i cant remember if the reloading of the autocannon in the 110 is command based or automatic).
For stuff like the Stuka and 110 there are shortcuts but unless you are using those a lot, id stick with selcting everything per position to train your memory.
In general you should be able to have just 2 control profiles, one for allied/italian and one for LW. The main differences between these two sets are the WEP/Boost cut out users different command lines but likely you will use the same key or button and the prop ptich increase/decrease is reversed.
If you stil find yourself struggling, let me know and ill, work though it on mine to give you a step by step.