> That would be like the autoregistration of etc/ configs in PLISTs.

I meant registration of configs in the +INSTALL/+DEINSTALL.

I also show the example of what I was doing with rc.d:
GENERATE_PLIST+=        ${ECHO} ${RCD_SCRIPTS_EXAMPLEDIR:S|^${PREFIX}/||}/${_script_};

   Jeremy C. Reed
   http://bsd.reedmedia.net/