Yeah that will be a lot faster. I never use the classic. A faster way to use the new scene editor is to go to the Channels Tab then "select all" in the dope sheet. No expansion is necessary at that point. But I do like the "scale all items function" in the classic. Thanks for the tip on that, tischbein3.
The functionality of the dope sheet and other tabs in the New Scene editor is far more advanced and I am a little surprised to see the "Scale all" function missing. Most other things I have found available in the new scene editor - but with more ease, interactivity and functionality - which is why I never use the classic one.