I am following the ATM tutorial but when I try to manually lengthen the lifelines all the connections on it move with it. I then have to manually readjust all of these. Is there a way to avoid this.

Hi Chris

Thanks for posting in the community. Unfortunately it is not possible to avoid this with lines that have already been added to the document. However if you turn off line connections from the page settings menu (see screenshot) that will prevent this from happening with lines you create going forward. Hope this helps!

I also have this problem. UML sequence diagrams are what led me to try out Lucidchart. The tool is really great but extending and shortening lifelines is an extremely common use case. I actually can't imagine creating a UML sequence diagram without doing this several times and right now it is a very cumbersome operation. It would be really useful to be able to be able to do this. Even being able to disconnect and re-connect previous connections so that they could be temporarily turned off while extending or shortening the lifeline.

+ 1 Hope this feature is in the roadmap

Thanks for commenting! We’re always looking for ways to improve Lucidchart and your feedback is the best way for us to do that. I’ve moved this idea to our Product Feedback space so that others can upvote and comment their use case details on it.

Thanks for your request and my apologies for any inconvenience this may cause you!

I solved this by adding another dotted line (Copy and paste the existing one) and attach it to the existing line. There may be a minor misalignment at times, but esp if there’s a method timeline - it can be extended over that. The new line can be Sent to back (Right click on it, go to Arrange in the context menu)

Great tip @sanjay.m, thank you for sharing!