Attach 1099 to my efile tax return

I want to attach my 1099 from my brokerage instead of entering all the information by hand.  The software for Business said I would be prompted to do so prior to efiling, but there has not been a prompt, and I have been unable to figure out how to do this.  A call to the support center was useless.  Please advise if this is possible for an efile, and if so, how?  (I have saved a pdf version of the 1099, and can easily attach it.)