[Koha] Restrict suggestions shown on OPAC

[Ms. Naveen Ali]

Greetings!! 

We are using Koha 22.11 on Ubuntu. https://eakl.neduet.edu.pk 

I was wondering if there is a way to restrict the suggestions shown on the OPAC. Currently we see all the suggestions that have been entered in the system. 
I see an option to purge suggestions. If I purge suggestions based on date, it will remove the related information of Requesting patron and Funds, etc which is required for reporting purpose because th e suggestions are endorsed by Department Chairpersons. 
I only want to restrict display on OPAC. 

With best regards, 

Naveen Ali 

ITM-JE (EAKL) 
Inst Representative for 
HEC Digital Library Resources. 
NEDUET, Karachi.