Hi JohnÂ
Thank you for posting on the community! Take a look at the UML Sequence Markup article in our Help Center to learn how to use the UML sequence markup.
Hope this helps!
That article does not help as it seems the markup interpreter is extremely limited. It does not seem to be an available feature unless they could show other items compatible to contradict me. I would be very happy if that was the case.
Hi Stefan thanks for commenting. When generating a sequence diagram from markup the order of the steps is determined by the order they appear in the markup.
If steps 1a should appear directly after step 1 in the above example the markup would need to look like this:
A -> B: Step 1
A -> C: Step 1a
B -> A: Step 2
Hope this helps!