how to make bomber or artillery not shooting all on the same target ?

Do we need to use spread move ? Attack move ? Or just a move ? Or nothing can avoid this ?

Currently it is painfully I need to group my bomber in small team and allocate a different target for each team...

It could be great to have bomber killing lot of unit by thelself without bombing all the same target.

Spread attack

Shift attack several targets then hit shift-g. Units will spread their attacks between the targets selected

@Deribus thanks a lot this is terrific !!! If I choose the mode 'move and attack what you want is there a risk that facing a lot of unit they will choose to attack the same one (the closer one) ?

Yes, they'll attack the unit closest to them

Thanks !