Configuring KLog is not difficult.
KLog has a 'Settings' option in the menu with tabs to adjust all settings.
My Data : To define your main data: Callsign, Locator and other station information.
Band/Modes : To select which bands and modes that you use.
Log widget : To select which data fields are shown in the log widget.
DX-Cluster : To configure how to connect to the DX-Cluster.
Colors : To set the colours you want to use to display the status of QSOs.
Misc : Several miscellaneous selection items that do not fit in other tabs.
World Editor : To see all the DXCC entities.
Logs : To add, edit or select the different logs that KLog can manage.
eLog : To configure the ham radio online services providers.
Setup-WSJT-X : To configure how WSJT-X sends data to KLog.
Satellites : To manage the different satellites that KLog supports.
HamLib : To configure how your radio equipment communicates with KLog.