@David-P-0 would it work if you convert the shaping point into a via point? You can toggle any route waypoint between these two sub-types by clicking the icon in the waypoint menu (see below, it's the hand icon on the second row of icons in the menu).
If you create it as a via point (where the point is displayed on the map with a hand icon not a "guitar pick" icon), you can configure the Garmin to display distance/time to next and get alerts on arrival.