Hello,
With teoz, it is possible to have parallel messages.
However, this feature does not seem to work with hnotes yet.
In the diagram generated from the following code, I would like Start & Initial to be at the same level vertically (i.e., to happen in parallel on the timeline), but it currently fails with an error.
@startuml
!pragma teoz true
hnote over Alice: Start
& hnote over Bob : Waiting
@enduml
Thanks,
Fred