1.When I want to draw a line between a note and a message in sequence diagram. it only allow me to draw the line between the vertical bar and the note, it doesn't highlight when I put mouse on the message. 2.In component diagram, how to show the external subsystem? In Mark Cade, he shows an interface, which then have a dot-line to Subsystem, But Together doesn't allow to draw such a line beteen the interface and the subsystem. thanks for your reply!