Redmine How to set up notifications for tasks depending on priority?

Question

Redmine

Good afternoon.
Maybe someone came across such plug-ins or patches ... It is necessary to provide notification of users on applications hanging on them. Notifications should be tied not to the due date!!! but to the date the ticket was created. Those. depending on the tracker, the response time to an incoming request is n days. Looked all over, didn't find anything. I beg you to help!

Answer 1

Write yourself
as an option, write the rules for opening tickets with certain priorities, certain deadlines

Answer 2

With pleasure. But my knowledge of ruby ​​is not great, I first encountered it 3 months ago. The maximum that is enough is to correct the existing ones.