Winclone 6.1.5 doesn't show source images to restore

Trying to restore an image to a Boot Camp partition in macOS High Sierra. The source list only shows “This Mac”, with no way to browse filesystem to find images. In this case the image is in a folder on an external drive which has three partitions. I can browse to the image in Finder with no problem. Help!
Update: I found a workaround… right-click on the image and select “Open with…”.


You can also drag it into sources.