Refer to PRASOON AK’s reply.
1. OMT3B – Copy a new screen sequence (standard screen sequence 21).
2. OMT3B – Change maintenance status.
3. OMT3E – Create new user screen reference (if you want to restrict changes to specific users).
4. OMT3E – Assign user screen reference (step3) and screen sequence (step1).
5. Change OMS2 setting.