When I go under "design" and "expand", there is an option to expand with X number of neighbors. As if when I get to that number of neighbors, I can expand to that dimension. At first, it said "10". Then I reached 10, and it said "15". Now that I have reached 15, it now says "20". If you cannot expand with the number of neighbors you have as currency so-to-speak, what is it there for?