Next and Previous Buttons are not display in VA03 change document log

Hi Gurus,

We have upgraded our system from 4.6C to 7.3 and as per 4.6C in VA03 transaction, change document log we had next and previous buttons to view changes as per screen shot.

4.6C

but in 7.3 these buttons are not present

and my client requirement is same as previews one. So please gurus help me to get this resolve I really appreciate.

Thanks