My personal imagination :
It would be great if a system was developed in which Bombardier was standing (or sitting) in a normal flight and then the hidden Bombardier leaned into the bombing sight when the Bomber Doors were opened.
... if this is possible, then you need a java coding guru ...
The stock B-24
J_100_CF has such a poor 3D that following my friend's Gilles64 feedback regarding the lack of props hubs shadows (engine OFF) I tried to fix that by borrowing the D props, and then, little by little I also borrowed the D engines and MGs ...
... but there is a bug, a black gap in the right wing engines (not visible under MeshViewer) that no matter what I tried I couldn't fix ...
... I also tried to import the D's main Gears, but the result is laughable ...!
... so the conclusion is that all this is way beyond my modest skills, so let's wish Ranwers & Co will tackle the subject ...