Hi,
Using StarUML 3.2.2, I am trying to draw a sequence diagram, and in this diagram, I want to add an action box to a lifeline.
What I am trying to achieve is shown in this picture which is taken from https://www.uml-diagrams.org/sequence-diagrams.html site (see attachment 1). This site is also referenced from StarUML help documentation.
Unfortunately, I could not find a way to achieve this.
What I am trying to achieve is also shown in UML Specification Figure 17.16 (see attachment 2)
Thanks,
Alper Tolga Kocatas
Operating system: MacOS Catalina 10.15.3