Live Tracking with information about Guide On target point

My idea is to add additional fields to the existing ones in Live Tracking feature.

I would like to send my target point ( the one I`m currently being guided or navigated), its coordinates and time to arrive.

This will add a possibility to show on map ( on the server-side) how long it will take me to get to my target, and where the target is. Now, my position is shown, but there is nothing else. I almost always have a target, and it would be nice to show it on the map along with this useful information. Reason? Sometimes I`m coming back from different city or have a meeting in distant place. I would like to just put my target and myself n othe map, so the other person will instantly see when to expect me. I would avoid unnecessary phone calls with question: "how long I need to wait for you?"