I want to show to my users notification when few of them are viewing/editing same record at the same time.

i found quite similar question here https://www.odoo.com/fr_FR/forum/help-1/question/no-concurrency-check-when-updating-records-31916 but I don't need to lock records. Just prompt to user notification like "User %username% is viewing/editing this record right now"

Any ideas on this?