Add Listagg/Concatenate/GROUP_CONCAT to Summary platform

[jthi]

I would like to have possibility to create column with all values (might cause issues, I know) from Summary platform. This would allow me to calculate statistics for some group and still see values for specific columns. This column could also be made Multiple Response

Example with SQL in JMP:

Names Default To Here(1);

dt = Open("$SAMPLE_DATA/Big Class.jmp");
Query(
	dt,
	"SELECT age, avg(height), GROUP_CONCAT(name, ',') as name FROM 'Big Class'
    group by age"
);

Would most likely require selection for separator and to determine if column should be multiple response. These could maybe be done in same way as Quantiles which have different selector below column list

[hogi]

related / same wish by @hogi :
:folded_hands: Summary and Tabulate: add aggregation option for Character columns 

[hogi]

related wish by @ewittry1 :

Summerize/Summary aggregation function for character data. Concat Charcter Vector into a Scalar (by)