@sjrcpa Thanks for your comment.

FYI, client applied and paid the federal extension himself (this is a new client). Client has no f4868 and we were told that he just paid the extension on April 15, 2019 by showing us the transcript. 

Therefore, please advise how to enter the extension on PTO (federal extension up to October 15, 2019 but no extension for CA).  Any idea?