[Etoys] Matrix morph idea

Holders are a great tool and is kind of a all round collection, it grows and shrinks when elements are added,and elements are pushed up and left. This works great but I was wondering if an matrix kind of Holder would be interesting, where each cell is numbered and it would be possible to reference positions etc. Kind of a Kedama but with possibility to drag and drop object onto the grid, to make tile games like checkers. One benefit of a matrix would be that it would be easier to check for patterns in the grid and thereby make simple computer players. What do you think ?

Karl