Quite new to OMV, but I like it a lot. Generally different concept from what I have been using so just trying to get the concept.
SharedFolder would be a conceptual pointer to a folder, but when creating and giving it a name, OMV would go ahead and actually add the folder itself to the selected device.
So if I want to share the whole disk, I would delete the name and use / in the path.
Caveat here: the actual device would probably be non-writeable, since the top level folder of the device is owned by root
And then Samba would take this one step further and re-use the pointer and take it from there... right?