How can i edit rEfind?

I have like 4 ubuntu icons, 3 of which don't work. Only one does. How can i edit the refined boot menu? Im dual booting Mac OS X and Xubuntu btw.

still trying to find out... I was able to delete some by removing the old kernel, but 2 unwanted still remain. one is something like "EFI\ubuntu\grubx64,efi" and the other is "boot from whole volume"

It's probably better to ask these kind of details on the rEFInd community forum . . . tabbed on the sourceforge site/wiki for rEFInd . . . .

e..

thank you very much! my apologies.