As you may know, this is not an available feature on the vivoactive 5 and cannot be installed.
You can submit it as a request - Share Ideas | Garmin
Because I own both a VA4 and a VA5 I really feel I got ripped off. The VA5 is an upgrade to the VA4? I don't think so, not with features removed!. My wife won't even wear the VA5 and I only use it for steps when stapped around my ankle at the gym. It's a failure.