MultiSystem requires an install to Linux. Download the tarball from Softpedia - extract to your downloads folder.
Next open a terminal and enter:
- Code:
cd Downloads
then
- Code:
sudo ,/[name of package.sh
This will start the installation process of MultiSystem and some other needed apps that will show up in mini terminal windows. I find it far superior to Unetbootin with drag and drop functionality.
Remastersys appears to be present in Zorin 8 but only via command line. You could try one of the others and the link to remastersys is now at 'Remastersys.com' and not sure how to cope with the pgp key to get it acknowledged in Zorin.