He was giving an example, thats all. :) There are several times you'd need to know the XYZ position of them outside of the entity state. For instance when using EntityPick - you only get the info on the entity you're picking, if you want to maniuplate multiple spheres in relation to one you're clicking on, then you need to know their positions, especially since you'll have to do a project to find out the actual handle of the sphere at that location in order to manipulate it.
Assigning meshes to arrays
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