Currently bombers cannot maintain formation when the guns or bombsight is manned by the pilot, and it is almost always solely manned by the pilot.
A command to drone the flight and bomb commands to a lead player would make the bombers act in a more realistic manner, e.g., maintaining formation and dropping bombs on the leader.
The way I would suggest this functioning would be via a system like so (using my squadmate Keyapaha as the example leader):
1) The player(s) who are going to slave their bombers form up on the leader.
2) The player(s) who are going to slave their bombers type ".form Keyapaha".
3) The newly slaved bombers move into set formation positions like the drones do now.
4) The player(s) in the slaved bombers act as gunners, being able to jump between the three bombers of their section of the formation.
To release from the formation a command like ".unform" could be used, or maybe a joystick movement from the cockpit could release the formation as is done with autopilot.
Because evey three bombers would still require a player to be present this does not free up players, effectively giving larger drone formations. Instead it simply allows the integrity of the formation to be maintained in the face of the enemy, something that is impossible to do right now.
This feature would be particularly useful in the coming Mission Theater as it would allow bombers to be flown in a more historical manner.
