S!
I found the screen of mission that I used to explain the il2 system for targets another time (for me allways match my goals in build DF mission, including with FoG).
You choose one side and set defence/attack areas:
In game you switch side and and the IL2 program will reverse the symbol targets:
EDIT: oops, I understtod what you want... the WON is in one side (the first choosed), the ohter obtain a "Primary target complet"... Your concern is not only about symbols on the map... You can use FBDJ to obtain this, or MDF in UP that chains maps throughof results with targets...