Ability to set horizontal and vertical convergeance seperately?

[fireship4]

I imagine that it would have been possible to set horizontal and vertical convergeance separately. By horizontal convergeance I mean the distance at which bullet paths will cross each other in the horizontal plane, and by vertical convergeance I mean the distance at which bullet paths cross the aimpoint at the range set on the sight.

When I say I imagine it would have been possible, I mean mechanically, by setting the gun direction.

In what situation would this be useful? If you want your guns to have the same horizontal separation at different ranges (for example multiple nose mounted guns) but still intercept the aimpoint at a known range.

Will this be possible in Cliffs of Dover?