Hi,
I wouldn't clone your drive... It would not serve much of any purpose I don't think...
It would require losing all of the data on another drive for one thing... It may allow accessing the files on the drive it is cloned to though..
Your eMMC drive should be the one listed in the picture you posted...
The one identified as "ROOT"...
The folders you see in the picture should be the "Documents" folder on your eMMC drive... I will check mine to verify this and post back...
My "File Manager" is a lot different as far as the drives\folders are concerned..
I have 4 drives with multiple partitions on most...