The «Hosting» menu item comprises the following sub-pages: «Overview», «Settings», «Databases», «FTP», «Backup», «Statistics», «Monitoring» and «Software».
In the «Databases» view, you can manage your databases and create new ones. This is also where you manage database users and add new ones.
Here you can manage existing databases and create new ones as necessary. Follow the instructions in: «Creating MySQL databases».
Here you can manage existing database users (see the instructions «Managing database users»). With a click you can create additional new users (see the instructions in «Creating additional MySQL users»).