How can the "Supercharge" feature be activated with a pen?

How can the "Supercharge" feature be activated with a pen? - Egg Omelet on Green Ceramic Plate

Recently I've acquired the "Main Weapon Supercharge" card. Its activated by holding two fingers on the screen and releasing them. I couldn't find a way to activate it when I play the game with the pen of my Note phone. Does anyone know of a way to do it with a pen?

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