When you click the "New..." button in the "User
Management" window. The "New User" window popup.
In the "User info" frame, enter the username
and choose your language. In "Word level" frame, choose
the target language you want to read or learn. In the list under the
language combo box, you can check one or several item. Click the button
"Show word list..." you can see the words contains in the
item. The words in the checked word list will be translated as "Known".