Get your taxes done using TurboTax

I am revisiting this post since I am about to file my taxes now after filing an extension.

 

I now have noticed other posts stating that I cannot use Form 8453 to file my Section 751 statement, because if I check the last box for Form 8949, it says to check it if you elect not to report your transactions electronically on Form 8949.

 

Since I was planning on efiling my tax return, then won't my Form 8949 already be electronically reported?

 

Is there a way to efile my taxes along with my Section 751 Statement?

Or do I need to file and send my taxes through USPS?

(And if so, what is recommended way of sending - registered? insured? etc.)

Thank you!