> I know I can simply copy the settings for logbook B and repeat the settings 
> for all logbooks C-S. But is there a better way to accomplish this?

Yes. Put all common settings into the [global] section, only differences into
the individual logbook sections. Like

[global]
Attributes = ....
Options ....

[A]
; Logbook A is different
Attributes = ....
Options = ...

[B]
Option X = ...

[C]
Option X = ...

[D]
Option X = ...

This way all logbooks "inherit" the settings from the [global] section, only the
differents are superseeded in the individual sections. Still you need two lines
for each logbook, but all recurring configuration can be omitted.