How to take screenshots without using buttons?

My android phone has weak buttons, so I don't use them frequently. I even change my volume from the settings! But to take a screenshot, I need to press the volume down button _and_ the power button. I have a Motorola Moto E4 Plus running Android 7.1.1. Is there any other way to take screenshots? I don't want to root my phone. NOTE: This question is not a duplicate as this is asking specifically ***without buttons*** and so helps those who can not use their physical buttons.