Summary Statistics are missing some statistics which should be there (in my opinion). In JMP19 this will become easier (like already mentioned) but with earlier version of JMP you will have to calculate those with more complicated formula or separately. You could use Summary platform and then join that to your original table or then use Col statistical function for the calculation.
One such formula is (how many categories of height there are in each age). If you don't wish to have formula in your table, you could use this as Transform Column in Graph Builder
Col Sum(If(Row() == Col Min(Row(), :age, :height), 1, 0), :age)
With Summary


-Jarmo