You can choose from the drop-down list the type of configuration you wish to use in order to import the sounds into the playlists. By default, the list is empty.
To create a new configuration profile, you just have to select NEW. Once you're through with the setup, save your profile (via the 
icon) and it will appear in the drop-down list.
The 
icon allows you to delete from the list the profile that has just been selected.
The two other icons 
are used to import or export configuration files.