Greg,
I think I found an explanation the manual, they call it the "ENTER to Sync Feature" as a tip. Thanks for this Greg I never would have understood it as you have explained it.
High Precision:
If High Precision is turned on, when looking for a faint celestial object ( i.e., a nebula or galaxy), AutoStar first slews to a nearby bright star and displays "ENTER to Sync." Center the star in the eyepiece, then press ENTER. At that point the telescope has a high precision alignment to that part of the sky and it then slews to the object that was originally requested.
Tip:
If the "ENTER to Sync" feature is accessed by mistake (holding the ENTER key for more than 2 seconds), press MODE to return to the previous screen.