Thanks to its built in import and export settings you can easily save all the customized kmplayer settings to a single file which can later be loaded thus applying all that customized within seconds!. So how to do it??.
1. Open the KMPlayer.
2. Press the "F2" button on your keyboard or right-click and choose "Options" - > "Preference"
3. And from the Preference window look at the 4 buttons in the lower end of the GUI (look at the screenshot below) and click o the "Export Presets" button.
|Click on that "Export Presets" button...|
4. Choose a desired name and a location then click "Save".
Yep that's how you save all customized settings of the KMPlayer to a single file. Now if you want to restore these settings then,
*. Look at the exported file
*. Double click on it and click the "Yes" button to the next message. That's it.