Symbol-ranking-mode-for-closest-to-zero

Would it be possible to add a 3rd mode to symbol Ranking, in addition to top and bottom — something like a “closest to 0” mode?
I want to find symbols whose price is closest to an indicator (like the SMA), whether it's slightly above or below.

Another option could be to allow normalization using a transformer indicator, so that the value is always positive or symmetrical.

In my use case, I want to identify symbols whose price is closest to the SMA20.