I have experience during my End User Training that mostly user complain that why multiple choices/options are coming so long list which actually is not related to us how to we resolve it and only stay with our business related entries during our work.
Below find step by step solution
For example while maintaining employee leave master data via PA30 transaction code, in subtype options HR/Time User see many leave types even which is not related with his company which is irritating thing for him to sort out or drill down to find exact one. As shown in below picture
Chose your related entries and press “Star+” Button and then press “Question mark” button
So User problem solved very easily as shown in below picture he/she can see only his own list of entries. even he can revert this settings