You are right....In selection criteria you'll be having
Specify Selection Criteria Information: (E = Existing; T = Temporary;
Selection criteria usage ===> T M = Modify; Q = Quick; N = None)
Selection dataset name ===>
Member name ===> (Blank or pattern for member list)
Suppose if you want to copy the records based on some conditions for eg:
If i want to copy the records like Name = TANDEN
Then Give the criteria as T and enter
It'll ask for the layout to use....Is PDS where copy book exists
Give the corr name and memeber....give PF3
It'll display the OPTION menu
Press 2 and enter
It'll display your layout...In that give the criteria as
NAME = TANDEN
It'll select all the records of name tanden.
If you dont want any selection criteria i.e no conditions and if you want to reflect the entire records in the new one give N (for none) in the criteria while begining itself.
Hope iam clear...If you still have doubts....Make a note and the same if i made anything wrong.