It never really occured to me, but I was just wondering about the Object Alignment tool.

If you have a handfull of shapes spread around and you select them all, open the Object Alignment tool and for "Vertical positions" select Align centrally - it will align the shapes in a horizontal line.

But if you select them all and select Align centrally for Horzional positions it'll align the shapes in a vertical line.

Wouldn't it be the other way around? Horizontal positions, Align centrally - shouldn't that align the shapes in a horizontal line and not vertical?