LUCI LIVE SE settings can be changed by menu items you can find in either the File Menu or the Tools Menu. Most of the items have keyboard shortcuts on witch they are executed directly when pressing this key or sequence.
> File Menu
Go to Add phonebook from the internet to setup an url to load a phonebook from.
Go to Add phonebook from a file to select a phonebook file to load.
Go to Add station to quickly add a new station profile.
Go to Exit/Quit to quit the program.
> Tools Menu
Go to Select a Station for setting up, choosing and/or adding stations.
Go to Select audio I/O for selecting the audio input and outputs.
Go to Options/Preferences to change some general settings, phonebook, or SIP defaults.
Go to About to see the about screen.