First of all, I discovered HFS yesterday and it is really great!
On the Virtual File System menu y checked "Default to virtual-folder" under "Adding folder".
Then I created a new empty folder and dragged to it a folder from my disk.
It entered as expected, as a virtual folder. So far so good.
Then I dragged into it several folders at once and they were created as real-folders, not as virtual. And this is maybe a bug.
Then I selected all those real-folders (with shift-click) and did a right-click to get the menu and choose "Switch to virtual folder" and the result was an error message with "List index out of bounds" and only the last folder of the selected ones was now a virtual folder. And this is maybe another bug.
Finally I tried the reverse: I selected several virtual-folder and try to make them real in one shot, and I got the same error message and only one folder got converted to real. And this is maybe same bug as above.
I hope this can help bettering this great product!
Best regards,
Roberto