Is there a way to add more bomber in formation for single mission with GOG 1.28 ?
Only fly with 3 bombers but lot escort, how to add more bomber in formation just like in career that i've seen huge bomber formation up to 15 i guess

In a single mission fly an escort mission but make the formation size large.

In the 1.28 version there should be a "ExtraSquads" line in the "eaw.ini" file.

This setting gives a large number of bombers to escort:

ExtraSquads=16
The "eaw.ini" file is a text file that can be edited with notepad.

Im sorry mrjelly, I mean for using bomber like B-17, B-26 or B-24 not flying as an escort....is there a way to add more friendly bomber with us? even i set extrasquads=16...nothing change for friendly bomber, only 3 and the rest is big escort

The maximum is 12 because there is a limit to the number of planes you can set for a single mission on the parameters screen and this is 12. This applies to fighters too