Get your taxes done using TurboTax

I'm using TT Home and Business software on my laptop.

 

I'd like to efile my Form 4868.  I can't figure out how to.  TT asks me to fill out the Form 4868 and tells me to mail it.

 

How can aI file it electronically?  Seems like a software glitch.  It's surely no obviuous.

 

Thanks.