Need a way to filter contacts that have no sales, no emails, no statements, etc. I have many contacts in my Zoho Books account that have synced over from Zoho CRM but are not actually clients or vendors so they do not need to be in Zoho Books. I'd like to find a simple way to filter-out those contacts that do not need to be in Zoho Books so I can delete them.   Can you help me filter those contacts out? Even a list view or report would be helpful but ideally, I'd love to have the ability to list them, review that list and then delete that list all in the same UI.