How do I change my payment integration from Paypal to Square?

I am currently set with PayPal as my my Integration 3rd Party. This was done by mistake. I would like for Square to be my my Integration 3rd Party. How can I make this update? Thanks in advance for your assistance.

Just remove Paypal and add Square. The system will automatically copy your previous settings, and you just need to provide your Square credentials then you are good to go.