How do I install custom .elf files into Free Mc Boot without reinstalling it?

How do I install custom .elf files into Free Mc Boot without reinstalling it? I would like to install Open PS2 Loader.

You can copy the .elf files to you memory card using ulaunchelf. After you get them on your card, use the Free McBoot configurator to create a shortcut for it on your PS2's home screen.

Thank you.

for a more involved answer...
you can place the .ELF files you want on a USB flash drive. then using uLE look for /mass. This is the USB drive.
then you scroll to the file you want press R1 then copy.
triangle will back you out to the root then find the MC navigate to where you want the ELF then R1 again and select paste. very easy. easier to do than describe...

this is the way you can update the OPL,uLE files etc on an already installed MC just paste the new file and overwrite......