diff --git a/cmd/clitest/main.go b/cmd/clitest/main.go
index 395428d..70f46b2 100644
--- a/cmd/clitest/main.go
+++ b/cmd/clitest/main.go
@@ -15,6 +15,8 @@ func main() {
 	likeBefore := flag.String("like-before", "9", "date str to compare")
 	likeAfter := flag.String("like-after", "0", "date str to compare")
 	likeLedger := flag.Bool("like-ledger", false, "limit data to these -like-* rather than zoom to these -like-*")
+	groupName := flag.String("group-name", ".*", "grouping to apply to names")
+	groupDate := flag.String("group-date", ".*", "grouping to apply to dates")
 	flag.Parse()
 
 	if flag.NArg() < 1 {
@@ -29,6 +31,9 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
+
+	deltas = deltas.Group(ledger.GroupName(*groupName), ledger.GroupDate(*groupDate))
+
 	like := ledger.Likes{ledger.LikeName(*likeName)}
 	if *likeLedger {
 		like = append(like, ledger.LikeBefore(*likeBefore))