Add Notes to ticket - how can we sort last updated ticket?

Add Notes to ticket - how can we sort last updated ticket?

How can I sort the tickets with the dates of added notes?

If I select "email rep," only 1 person would be notified about the note.  Is it possible to show on the Home Page that would display customized views like:
  • "tickets with new notes added to Support Group tickets" 
  • "tickets with new notes added to Tech Group tickets" 
  • "tickets with new notes added to MY tickets" 

This is a big problem especially when a ticket is closed, and if I add additional notes without notifying the (one) rep, there is NO WAY anyone else would know that I have added a new note.  


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