The following declares and creates a list collection and then writes an element to the list:
declare stringList as list[string] create stringList write stringList from "item 0"
The following writes 5 more elements to the list using a perform loop:
perform varying i as binary-long from 1 by 1 until i > 5 write stringList from "item " & i end-perform display "The contents of the list : " invoke displayListContents(stringList)
See also the Collections sample, which is available from $COBDIR/demo.