Apple Pencil problem

Hello. I am using Margin Note 3.
While using Margin Note 3, I accidentally turning off the Apple Pencil.
But I am trying to use the apple pencil again, but I can’t find it no matter where the button is on. Please tell me how to activate Apple Pencil. Please as soon as possible.

Hello, akira0703. Try tapping anywhere on screen by Apple Pencil, then it will be activated.

Regards,
Lea
Support Team