Request guidance on the following query from SAP cFolder users for PS purposes :-

How to add a new 'Search' criteria with tabs for filtering the

1. 'Recipient' in "Sent notifications"

&

2. 'Sender' in "Received notifications".

Note :- The purpose to filter out the list of documents sent to a specific user in a collaboration for the selected period & to filter out the list of documents received from a specific user in a collaboration for the selected period.