Hi there thanks for posting in the Lucidchart Community. It is currently not possible to collapse and expand org charts in the publish viewer. We're always looking for ways to improve Lucidchart and your feedback is the best way for us to do that. Would you mind adding your idea to our feature request form? Ideas submitted to this form are passed on to the product development team for their consideration.

Thanks for your request and I apologize for any inconvenience this causes you.

If you are interested in more information on these features please take a look at the Org Charts and Publishing articles in our Help Center.