Syu,

That's a typical "4-Button " multicharger and they all work about the same. Provided you have the pack connected to the charger properly, you select LIPO from the start menu then hit enter and then select the charge type and hit enter again. Then you select the amperage level, hit enter , then select the battery cell voltage.. Then hold enter and it will check the pack and then it will prompt you to hit enter again to start charging. After that if you hit the right arrow you can view the screen showing each cells voltage level.
If you select LIPO Charge and set it to 0.5 amps and 11.1 volts , the charger will charge the pack until each cell reaches around 4.2 volts and all cells are balanced. Then it will beep and end the charge cycle showing the total pack voltage on the display.