Silent Hunter 5: Auto target AA guns

[rb2312]

Hi All

Not sure if this has been asked before (probably has), but does anyone know how to get the AA guns in silent Hunter 5 to Auto target aircraft, similar to how they do in SH4

I know that if you spot the planes through the binoculars and are lucky enough to get a red crosshair, and hit space in time, then the crews open up on the targets.

but I do miss the better trained gun crews in SH4 who actually know their job and will unleash hell on any enemy plain that dares get close enough without you having to designate a target

any help would be welcome