I'm located in FL and have clients that will be taking advantage of the extended deadline offered to those impacted by the hurricane. How do I indicate that in Proconnect when filing the tax return?

We had a previous hurricane that allowed an extension of time to file, but every return I filed after the original due date received a letter/penalty. I had to reply to each one to get the penalty abated. I'm wondering if I'm supposed to indicate on the tax return somehow that I'm late due to a disaster. 

Any advice would be appreciated!