Winclone 7.01 won’t create an image file on an external disk - issues error message:
Could not create image file. Error message: You don’t have permission to save the file “Untitled.winclone” in the folder “Backup Two”.
It does appear that it will create an image file on an internal Fusion drive - but there isn’t enough space, hence the need to use external USB drive. Note I am running with admin privileges, High Sierra MacOs.