To use the application simply define the settings and press on the "OK" button.
At first, specify which for which keys you want to get notified on the first tab of the main screen.
Afterwards, specify the way that will be used to notify you on the second tab of the main screen.
You can get notfied if caps lock is on with a big application icon, a system tray icon, or a screen message.
You can specify the on and off colors that will be used for the icons of the caps lock indicator.
You can also specify the screen message location, font size of the screen message and also the offset x and y for the caps lock indicator.
Moreover, on the third tab you can specify if and which sounds will be used for the on and off status of the keys.
You can specify there also to "Beep" when caps lock is on.
On the fourth tab you can specify to run the application minimized to the system at Windows startup.
To set settings for each individual key separately check the checkbox "Use these settings specifically for the Num Lock key" e.t.c. and specify the on and off color that will be used only for this key, on and off sound and also if it will beep.