Vertical position of elements in sequence diagram

[jamessher]

Hi,
I would like to be able to move sequence diagram elements down like Cart Item in http://www.sparxsystems.com.au/EAUserGuide/index.html?sequencediagram.htm but I can't figure out how to do it.
Anyone know how to do this ?
Thanks
  James

[mbc]

The Cart item in the example you give is at that position because it is created (instantiated, constructed) at that point in time. That is done by the New message that you see in the diagram. They have done that by setting "Lifecycle" to "New" in the message properties.

Best regards
Mikkel

[jamessher]

Thanks Mikkel - that worked great