Question: Pin icon on screen with distance

I have a blue icon with a pin on it that in this screenshot shows 79.97km, which is actually the runway I began at.

Doing a short VOR flight. I’m a casual pilot, I use some of the assistance parts and I want to use this icon for something useful.

How do I change this icon to show my next waypoint or my destination? How can I skip to the next destination if it doesn’t register that I’ve got to one?