The standard HD 2345 can be set up as the guide star for target HD1234 by using the GUIDE command:
SO HD2345 R 10 13 15.7 D -04 05 06 EQ J2000
GU HD2345
NE HD1234
GO/NEXT
This sequence moves the telescope to HD1234 and specifies the object HD2345 as guide star. Now, push the GUIDESTAR button in right-hand upper corner of the Acquisition & Guidance panel (bay 3). This causes the guide probe to be driven to the correct offset to pick up HD2345, if within range. It will assume that the guide star and target source coordinates have the same equinox and makes no allowance for proper motions.