Use the new hierarchical preset menu feature in Loopy.

Use the new hierarchical preset menu feature in Loopy.

This is the game for which I bothered to introduce the feature at all.
Because of the large number of grid types, the presets menu was
getting quite unwieldy; but because the grid dimensions for each grid
type are more or less arbitrary, it's still useful to have at least
one reasonably sized example of each grid type. So I've compromised by
moving some of the grid types into a 'More' submenu.

(I'm not particularly wedded to _which_ settings deserve relegation. I
may change my mind and move things about later on.)