When a marker is created, it auto creates a marker number. It's possible to jump to this marker number using the shortcut .(marker number). on the numeric keypad.
All well and good, but actually keeping tabs on which marker number is which is less straightforward that it might be.
Why not have the marker number written in text within the small yellow shield symbol in the marker lane? That should be easy to implement, and yet much clearer than it is currently.