Creating a node of type 'content_x' will automatically create a term in any selected terms?

The module now works:

Create a node of type 'content_x' will automatically create a term in any selected vocabularies.

I wish:

Create a node of type 'content_x' will automatically create a term in any selected term too.

For a tree-like hierarchy between terms. I really need it.

Do u help with this?

Thanks a lot