Hi Alex

Thanks for reaching out in the community. Please see our UML help center article for information about our supported markup. This should give you more context to help resolve your issue. Thanks for using Lucidchart!

I've already read that page a few times

to rephrase question  what is the syntax of the par keyword?

also why are the keywords case sensitive a suggestion for improvement is syntax highlighting and there is an issue if you change tab in the document without pressing build resulting in multiple instances of the same drawing overlapping each other even with pressing save sampe here https://www.lucidchart.com/invitations/accept/a7f425bd-5824-49e5-ac9f-e177048762dc

Hi Alex

Thanks for your response. There is no expected syntax if you remove the semicolon from the following example:

 par

Alice -> Bob: text

;

Alice -> Jane: text

end

then the markup builds properly. I hope this helps. 

Thank you Andrew for confirming the way the tool works my misaligned expectation was that if two events are in parallel they would be separated by a line similarly to how this appears for 'alt' (see below)

Hi Alex

Thanks for your response. We're always looking for ways to improve Lucidchart and your feedback is the best way for us to do that. If you’re willing to share, we’d love to hear more details about your use case or what you’d like to see in this experience within this thread. I’ve also converted this post to an idea so that it’s visible to others within the Product Feedback section of the community - from here, they can upvote it and add details of their own.

Finally, for more information on how Lucid manages feedback via this community, take a look at this post:

Thanks again for your request!

Hi

Does anyone have any update on this same question?

Document shows par is supported but it doesn't work the way it should be.

The sequence diagram UML markup support is really limited...

- Lu

Hi Chi thanks for commenting on this thread. Two events in parallel will not be separated by a line in our UML markup tool because the 'par' keyword cannot be paired with 'else'. With the current functionality 'Else' can only be used with 'alt'. I recognize that this is not ideal and I'm sorry for any inconvenience this might cause. As a workaround I recommend manually adding a dotted line to separate parallel events once you have built your diagram using the markup tool.  

Our development team is working on larger improvements to the functionality of our UML markup tool and we would love to hear your feedback on this. If you would like to see greater support for UML syntax in Lucidchart please feel free to share your thoughts in this thread. Feedback submitted here goes to our Product team and is used to inform future changes so this is the best way to advocate for a change you would like to see.

Any update on this topic after years since reporting this issue?

Hey there

Thanks for following up on this thread! Our devs are currently still working to make our UML markup tool better and better. Please feel free to upvote this request and share additional thoughts in this thread.

Thanks so much for voicing your ideas here in the Lucid Community! Cheers

Any update on this it has been 5 years since this was requested? I can see that mermaid does exactly what is needed with the line separator for parallel actions. In their example docs they use the `and` keyword as a separator. Without this it is difficult to separate out different parallel actions from another for example if there are three how do you know they actually are not two with one of them comprised of two sequential actions and the other a single.

Hi Chris

We not support a line separator for parallel actions. I recommend manually adding a dotted line to separate parallel events once you have built your diagram using the markup tool.  

Hi Team

any update here? can’t we still have two different series of parallel actions ?