Bombing Techniques

Folks:
I have had pretty good success with dive-bombing maneuvers in smaller planes. However, I am missing something when it comes to scoring hits with the large bombers. I have seen references to accessing the bomb sight in some of the multi-engine bombers, but I have yet to figure out which key or combination of keys gives me that access. Is it similar to CFS3, where you push one of the F keys? Or is it different for different planes? Or is it a matter of assigning the proper keys in the settings menu? Hope this doesn't sound like a dumb question; it's something that's really been bugging me.
Poppa_J
I have had pretty good success with dive-bombing maneuvers in smaller planes. However, I am missing something when it comes to scoring hits with the large bombers. I have seen references to accessing the bomb sight in some of the multi-engine bombers, but I have yet to figure out which key or combination of keys gives me that access. Is it similar to CFS3, where you push one of the F keys? Or is it different for different planes? Or is it a matter of assigning the proper keys in the settings menu? Hope this doesn't sound like a dumb question; it's something that's really been bugging me.
Poppa_J