diff --git a/Example01a_UnreliableMessageFlow_VirtualEvents.mp b/Example01a_UnreliableMessageFlow_VirtualEvents.mp
index 88406af18f4b316f04a9a5858cdffedbbf49bd71..30c1084b6ce2a02c0ad54a31c6bc6c39637457e0 100644
--- a/Example01a_UnreliableMessageFlow_VirtualEvents.mp
+++ b/Example01a_UnreliableMessageFlow_VirtualEvents.mp
@@ -17,6 +17,9 @@ We may want to specify behaviors when some messages get lost in the transition.
 It can be done using ‘virtual’ events.
 
 Instructions: Run for Scopes 1 and up.
+	Scope 1: 3 traces in less than 1 sec.
+	Scope 2: 7 traces in less than 1 sec.
+	Scope 3: 15 traces in less than 1 sec.
 
 ==========================================================*/