[syslinux] extlinux graphical menu with function keys

[Bert Verhaeghe]

Hi all,

I have a question regarding the syslinux menu as used on the Ubuntu,
Sabayon, ... live CD's.
According to the syslinux documentation the function keys can be used
to display a help file, but in the menu of these live distros the
function keys are used to pick the resolution, language and keyboard.

I would like to bind a submenu to these function keys. Is this
possible and how can this be accomplished?
Or if anybody knows a place where this topic is documented, please let
me know.

Any help would be greatly appreciated.