F9 > Edit | Select | From = Now
F10 > Edit | Select| Thru = Now
These were default accelerator assignments in all versions before X1. I re-assigned them right away in X1. Just search on "now" in Global bindings, and these options will be the first two listed.
You'll probably also want to re-assign:
Ctrl+F9 > Edit | Select | From = Start
Ctrl+F10 > Edit | Select| Thru = End
and
F7 > Go to From
F8 > Go to Thru