An outomated function, that snaps all edges/vertecies of all blocks at once to
a grid, but chooses the closest snapgrid, and not
the next lower even, as it seems to me.
(not like int(3.89) = 3 but: 3.89 -> 4)

Maybe also a warning if blocks are not totally on the grid.

I would prefer to put WED into a mode, where no vertex can be moved to
after comma numbers.
A lot of levels have little cracks, that are a major couse for slow
visibility calculations. Snappin everything to a grid reduces this risk.



Also for texturing:
applying the texture only to the side of the block, that is touched by the cursor.
This makes skinning a block with different textures much faster.

And the option, that when a skin will be applied, that the lower left edge of the texture is
automatically at the lower left edge of the touched side of the block.
Reducing the time it needs to realign the texture manually.