Hi Justin,
sorting by a key figure is done when you use conditions.
depending on the sorting order you can user condition higher than x or condition lower than x.
if you want to see all values, choose x in a way, that it covers all possible vvalues.
Or you go for condition top 100% or bottom 100% that also covers all values and sorts the values.
if the sorting shall be done by only certain char sums, you need to work on the definition of char in the condition.
you need to try out a bit with your data to find the right setting.
regards
Cornelia