That tool is Easy2Boot, and don't let the janky UI put you off because you will want to learn what it can do. My only ...

I created a bootable USB stick using an Ubuntu 8.10 live CD and the (manual) instructions shown at this guide. This worked great. However, what I'd really like to do is create a multi-booting version ...

And it won't boot something that you don't have the ISO for. I've followed those instructions for my usb stick. Only diff is, I wasn't interested in putting all those distros into my stick, I just ...