Hiding Delimited Qualifications in IT0024

Hello Experts,

On deleting qualifications and adding/changing a new qualification in PA30 in either the CHANGE or CREATE function

all looks good however on returning to the records after some time, there are delimited entries of the old records appearing along with the new updated record?

Is there any way of hiding these delimited entries?

Eg.

Qualification Group Qualification Name Proficiency Start Date End Date

Test Grp Test Quali Yes 01.11.2010 12.04.2011 <-- How to hide this row?

Test Grp Test Quali Yes 13.04.2011 12.04.2012

Regards,

Preshit.