How many planes in the air at once?

Hi,


I wanted to set up a Quick Combat Mission with (approx.) ten Ju-52's flying relief into the Stalingrad Kessel. I wanted to lead a flight of three Il-16's to intercept. I chose the 3 vs 3 icon, only to find out that 3 was the max. number allowed on either side. Which icon do I choose to get 10 or 12 opponents?




Please help.

I didn't find the right solution from the Internet.

References:
 forum.il2sturmovik.com/topic/33522-how-many-planes-in-the-air-at-once/
Kitchen Equipment Video


Thanks