By default, it is the user who has to recover their password by using the automatised system (see section 3.4 in the Author manual).
However, in some cases, the password has to be restored manually (for example, if the email address of a user is incorrect, the user does not receive the email that is sent automatically for recovering their password).
To restore manually the user password, go to "Administration" >> "Management of users".
Locate the user in the list and click on "Restore password" from the "Options" drop-down menu in the "Options" column.
Enter the password, confirm the password and click on "Save".
