Refuel/pit strategy of rejoin on trackmap

The trackmap in iracing (or any other game) to get a 2nd dot of my car, to show where I will rejoin on track if I pit now Manually inputtet pit time fx. 53secs. My idea is to see between which drivers I will rejoin. Lets say that if I pit now, I will rejoin in a group of slower cars, might not be good for me. 2 laps later it will then show, that I will rejoin infront of the slower group of cars, because i stayed on track. Should only appear on trackmap, when refuelling is possible ofcourse. And should not show if no refuel is needed, and not show if my pit is done.