How can I change the way I screenshot on my B1-730 Acer Tablet?

[Android Central Question]

My Acer Tablet often shuts down randomly even if it's fully charged. I've had this tablet since 2015. Because of this, I always had to press and hold the power button and in the long run, my tablet's power button has sunken. Now, it's impossible to take screenshots by simultaneously pressing both the power and volume down button. It often ends up lowering down the volume.

I tried installing different screenshot apps and their only method of taking screenshots is the same: Pressing and holding down the power and volume down button or the power and home button. I can't seem to find a way to change the method of changing it even through the settings.