settings-repl-max-print-both-truncation-settings

scala> Seq(1,2,3)
val res0: Seq[Int] = List(1, 2, 3)

scala>:settings -Vrepl-max-print-elements:2

scala>:settings -Vrepl-max-print-characters:50

scala> Seq(1,2,3)
val res1: Seq[Int] = List(1, 2) ... large output truncated, print value to show all