I'm referring to the IRS requirement that when you paper file the 1040X, you need to include any forms that changed as a result.  For example, taxpayer received an amended K-1 so if they were paper filing the revised Schedule E Page 2 would need to be attached.  

The Lacerte instructions for e-filing don't mention anything about attaching such forms, so the presumption is that they would automatically be included with the 1040-X e-file.  But I'm looking to make sure that is the case.