| grid | Grid used for layout. |
| brushTarget | Target of the move operation. By default the currently selected GameObject. |
| from | Source bounds of the move. |
| to | Target bounds of the move. |
Move is called when user moves the area previously selected with the selection marquee.
See also: GridBrushBase.MoveStart, GridBrushBase.MoveEnd and GridBrushBase.Select.