First this option is buried a tad too deep. It should be a separate entry under boot, instead of being part of boot configure. "Autoloader Configure" perhaps?
When selected this option two things happen, previous duplicate entries have the prefix "Old_" added to them automatically. The user should be prompted instead. Second there is no way to delete an entry once it is added. I had to edit /etc/fstab manually. Sort of defeats the purpose of the gui, no? Include a delete entry option. I see people using this option to fix the autoloader so the simpler the better. Gabriel