Hwo to remove/clear a specific marker in unfolding map processing 3

Hi. I was trying to simulate the movement of a marker in unfolding map with processing 3. Please see the following picture.

Could anyone please give me any hints?

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Would this post help? Removing Markers in Unfolding


Can you clarify what you are trying to do? Do you want to remove a marker from the map, or do you want to animate a marker on the map, i.e. move the marker to a new position over time?