Honor 8 : Is there a way of taking a screenshot without using the power button?

When I used to take a screenshot on a cell phone (Honor 8, not rooted, Android 8.0.0), I push the power button and the volume button together. But now the power button on a cell phone has stopped working (see https://android.stackexchange.com/questions/253364/how-to-fix-the-problem-of-power-button-stuck-a-bit-inside-and-not-working) . Is there a way of taking a screenshot without using the power button? Is there something similar to accessibility tools on an operating system (such as virtual keyboard in Ubuntu)? Thanks.