DMR repeaters these days carry a number of talkgroups, but those talkgroups are always changing and it can be a pain to constantly update to the latest codeplugs, or to merge codeplugs from multiple repeaters in your region.
MD380Tools comes to the rescue with Promiscuous Mode. Enabling this optional feature will cause your radio to play audio whenever any traffic comes in on your selected timeslot. You can then quickly jot down the settings to update your codeplug.
Enable the feature in the menus under: Menu -> Utilities -> MD380Tools -> DMR Setup -> Promiscuous