show edited as "new"

[malekitto]

hi there ! I'm having some trouble in this :
I'm pushing my user to use the Edit function (instead of double posting) the trouble is that the modified post haven't the "new" icon , and aren't show under "new posts" so no one is going to click them again. how can i set the edited posts to be shown as "New" ?

(the problem is that if edited posts aren't flagged , no one ( including me ) is able to recognise that the topic is been modified, exept by clicking (without a specific reason) on the topic looking for the EDITED BY at the end of each reply.

and that is what i need , make my user note that they need to read that topic again, because it's been modified )

(i tried to search but i found nothing )

thank you in advance

thank you in advance