Tony Hwang wrote:
Hi,
I don't think how many wires or colors you have in an outlet matters.
Just parallel move it over to the new GFCI outlet if you want to.
Typically bathroom, exterior outlets need to be GFCI. In addition,
in my house I have some in the sunroom/greenhouse.
Tony

If I do a parallel move, that puts from the backside:
red on the top left of "load"
white #1 on the top right of "load"
white #2 on the bottom right of "line"
green on ground

I did try this to satisfy my curiosity. I couldn't reset the outlet and
try anything; it was dead after turning on the breaker. I could have
connected something poorly, of course.