I decided to wait to submit my M1PR via efile. Now that the federal and state have been accepted, I can no longer find the efile for the M1PR. How do I get back to efile?

It seems TurboTax software assumes you are done after the Federal and State are accepted, however I had a 3rd efile that I decided to wait on for the Minnesota property tax refund.  However I can not figure out how to get back to submit this efile.  Please provide directions on how to do this.