User Activity

Hi, I'm looking to make some of the pages from 'sp_page' table searchable for the end users in the AI search that we have in ESC portal. Can someone please help me with the steps to accomplish this?I have already created the Index for sp_page table a...
I can see the email logs for last 60 days in the instance. Is this a constant value in ServiceNow or is there a property in the system where we can change this behavior to be 30 days or so?
Helpfuls given to