Double click side key feature

[Snowballs]

Hello, ive been dealing with the screenshot dilemma for as long as i had smart phones and i still cant ever get my palm quite right. Almost all the time, i am unable to take that screenshot. Id rather activate bixby and type out "screenshot" than to use my palm. Is there anyway to add screenshotting as a double click on the side key. I hardly ever use the side key to quick launch an application so it would make it a quick convenient add on. Thank you!

[Stuee]

Spoiler

If you press the volume down and power button that'll do it.