Hi Tomas

Thanks for your post. We currently support Parallel MI and Sequential MI activity markers in our BPMN library. I hope this helps! 

Hello

I am familiar with this function but what I mean is something different.  I mentioned MI marker in a pool. Please see the picture. BR

Thanks for your response. Unfortunately what you are trying to do is not currently supported in Lucidchart. However we're always looking for ways to improve Lucidchart and your feedback is the best way for us to do that. If you'd like to potentially see this functionality added to Lucidchart in the future would you mind adding your idea to our feature request form? Our team uses this form to combine like requests from users and present them to the Product team for consideration. Thanks in advance for your request!