You won't get 'out of sector' if you go straight through the radio room hatchway on Shift/F2. I use the mouse ( left button depressed) to steer and the arrow keys to move. Sure you'll hit a 'black hole' but if you keep straight on you'll end up next to the radio operator. It's even better with the open hatch mod installed.....you actually get to see where you're going.
If you then go straight to the position where you can see the radio/radar equipment and hit right mouse button you will end up where you originally were, but will have set the shift/f2 position. This will stay constant, and can be returned to from wherever with the key combo...until you use it elsewhere, of course.
Next thing is to go into the radio room yourself...if you weren't already there. Right mouse click on radioman (or press R) to operate equipment. Then Shift/f2 to view what you need to see . With a bit of juggling of mouse and arrow keys you should get a good view of all of the wheel from there. Another right mouse click will take you back to radio room.
That's the theory anyway. Fiddly certainly....but should get easier with use. Must confess that I haven't used radar (never survived long enough to get it
) but I do use shift/f2 for other things, particularly for the attack scope position. Now going up the ladder is one place where you can get 'out of sector' very easily.
Hope this may help in some small way. Not what you wanted I know, but as Irish says, I don't think there is anything else on the market!!