Do you have ideas on how to select central dot of shape?

So, i have this little platforms on which i want to summon minecraft houses schematics. I want to have them in the center of every platform. I know that this is a week spot of WM - work with heightfield with a lot of objects individually, so i need help how to do it :thinking: :thinking: :thinking:

Maybe i should not use Crystalize? More better will be to make some platforms and spawn them randomly through Instance Scattering… But how to prevent overlaying of objects? I want to have pattern similar to this :point_right: :point_left: