If it would auto assign grids and waypoints incrementally it would save time , but if anyone decided to remove a grid it might throw everything out of whack, unless they just emptied the fields and left the grid intact with blank waypoints.
I have noticed that when trying to use patrol , the npc will go to end of grid, and disappear and start at beginning again.
I thought they were supposed to go to end then retrace backwards along grid , that would be much better.
That is why I've been using circular grids instead of patrols for hilly terrain.
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