Add benchmark to the Performance section

I know I can do it in the chart, but I would like to see the benchmarks in numbers and not in a graph

Yes, you can assign the performance widgets a benchmark data series, too.

But how? I’m in the Performance (main) tab. I want to see my portfolio’s performance compared to, for example, SP500 during the same time period. I’ve been playing around with the options and can’t find how to do this (it’s only possible for me in the Chart section)