Easy, when you have DS open (best to do this with an already recorded run in the buffer). I like to go to the scope mode, display the scopes I like, and then it's just a matter of hitting the correct keys.
ALT - PrtScn
(that's alt print screen).
That's the way to take a snap shot of whatever window is open at the time.
Then you can past it into almost anything you want. Word, picture editing software, what ever.
The way to past what you've just put on the clip board is CTL - V
That's Control and the V key (paste).
The way I like to do it paste the cope mode display into a word document. Easy to get a couple of them per page, and then just email the word document as an attachment to email. Way too easy.