User Activity

Hi    We are trying to Hide only System sent Emails in Activity Logs not other email entries in Activity log.Send/Received emails in filter is hiding all the entries but we want to hide only system send emails.other activities
View all report under "My Requests" In Service now user portal is showing all users request, but one users should not see others request.I have tried to make a changes in My Request Widget but no luck can any one help me on this
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