Wow, you've got a pretty steep climb if you got zero training with the machine. Your HFO should offer some kind of free training (at their location) and you should absolutely take advantage of that.
You should be able to press the Hand Jog button to get into the Intuitive Programming Screens. That should bring up the tabs for Manual Mode. Once in Manual Mode, you should be able to operate the handles manually.
As for starting the spindle, type the RPM you want, then press Spindle Forward. To stop the spindle, press Spindle Stop.