Downgrade from Winclone 7 to Winclone x (El Capitan)?


I just purchased a license for Winclone 7 but I want to install Winclone on a Mac with OS X 10.11.6 (El Capitan). I tried to install Winclone 5 and Winclone 6 but the license-key for Winclone 7 isn’t accepted. Is there a possibility to install a version of Winclone on El Capitan without the need to purchase a 2nd license?

Regards, Andreas