[gentoo-user] transferring contents of /etc/conf.d to the config files

Hi,

I have read several docs to figure out this...all docs do changes
in /etc/conf.d but I found no hint how to transfer that settings
to the "real" configuration files of the according programs.

env-update & etc-update do not help...

What tool do I have to call to acchieve this?

Thank you very much in advance for any help!

Best regards
mcc