They answer is yes it is possible and relatively easy if you have a driver with step and direction inputs. You simply have to pulse the step input with the correct delay between pulses.
If it is a full step driver you need to send 25 pulses with a delay of 90 * 60 / 25 = 216 seconds between them. If it is a micro stepping driver you send more pulses more frequently and get a smoother motion but it will always appear to move in steps at such a slow speed.
If it is a full step driver you need to send 25 pulses with a delay of 90 * 60 / 25 = 216 seconds between them. If it is a micro stepping driver you send more pulses more frequently and get a smoother motion but it will always appear to move in steps at such a slow speed.