F7, F8, F9, and F10 are some of the shortcuts that I restored from previous versions because I've been using them since Cakewalk for DOS. What you want is:
F7 = Go to From
F8 = Go to Thru
F9 = Edit | Select | From = Now
F10 = Edit | Select | Thru = Now
Ctrl+F9 = Edit | Select | From = Start
Ctrl+F10 = Edit | Select | From = End