Merge date from two coll lists

Gabriel Far's icon

Hello everybody. I am trying to dump all the data from one coll list (e.g coll ListOne) to another (which has already some data) (e.g. coll ListTwo). So I need to create a third coll list which has all the data of the previous two lists, in a row.
Any help please?
Thank you

double_UG's icon

dump > join

Max Patch
Copy patch and select New From Clipboard in Max.