[syslinux] Including multiple configuration files

[Joel Ebel]

Due to a large number of targets, I'm working on a menu based PXE system 
to ease finding the difficult to remember obscure labels.  I'd like to 
split these up into separate menus, and thus in multiple configuration 
files.  However, in doing this, I don't want to sacrifice the ability to 
type in any label at the main boot prompt, but I also dont' want to 
maintain duplicate entries of a particular label.  While I see the 
options "MENU INCLUDE" and the ability to append multiple filenames to 
the menu.c32 target, I don't believe there is currently any way for the 
core syslinux to handle information in multiple files.  Is this correct? 
  Is there any technical reason this isn't possible?  It would simplify 
my configuration if such a feature were implemented.  Without it, I 
imagine I'll just take all the sub-menu config files and concatenate 
them together to form a core syslinux configuration.

Also, is there any functional difference between the use of MENU INCLUDE 
vs appending multiple files to the menu.c32 target?

Thanks,
Joel Ebel