#8 adjustable grid size

[Dusty Willows]

It would be very handy to be able to adjust the size of the grid, so that, instead of being 3x3, the grid could be resized to MxN. Also, for the 3x3 size it would be preferable to allow the images to appear in the middle box.

The option for resizing would add a lot of flexibility to the program, as well as a new dimension in the type of spatial reasoning one could train. This new flexibilty would also be useful if one began training with multiple visual stimuli.