Complete in Order option not available anymore?

Hi pglearn,

Thank you for reaching out.

The option is still available. When sending a document for signature, mark the box for "Recipients must sign in order". Check the screenshot below:

If the option does not appear, we suggest checking with the account admin to see if the option is enabled in the settings. For more information, refer to the following help document: https://adobe.ly/3QvPksE. 

Let us know if you have any questions.

Thanks,

Meenakshi