Adding SPX Performance

I'm creating a chart list of the stores/restaurants, etc. at a local mall.
In the attached chart, in the box below the main chart, I'm looking
for an easy way to see if a company's stock is performing better or worse
than the SPX. Is it possible to show the SPX as a flat line and overlay the
company's stock price? I'm also open to other suggestions.
Thank you in advance!
https://stockcharts.com/h-sc/ui?s=JWN&def=N&id=p28338851307&listNum=43

Answers