How display notification?

Damn, I did not understand anything. All dug up.

How to show the user a notification once it has been assigned responsibility? I’m talking about notifications in the upper right corner. That I already only did not do, but sent only by email (which is not necessary). The problem is that employees rarely update the page for this, many tasks are running for hours. Want to get rid of it.

And another question, how to change the sort order of contractors in the list? Default at the beginning of the earliest records, and need to show the most recent. Help, please.

P.S. To 7.7 have not been updated.