Box Select allows items to be selected in a rectangular portion of the view. While in this mode, dragging with the left mouse button will select all items inside the rectangle, and dragging with the right mouse button (or the left mouse button while holding the control key) will deselect all items inside the rectangle. The selection status of items outside the rectangle being dragged is not changed.

While dragging, holding the alt key will allow the origin of the rectangle to be relocated. This allows for fine adjustment of the selection region after a drag has been started.

Pressing the Enter (or B) key will accept all changes made to the selection and exit Box Select mode. Pressing the Escape key will exit Box Select mode while canceling all changes made to the selection, reverting it to its previous state prior to when Box Select mode was initiated.

The type of item to be selected depends on the current select mode:
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[*]In [link=select_mode_vertex]vertex select mode[/link], vertices will be selected if their center falls within the selection rectangle. If the mesh is not in [link=wireframe]wireframe[/link] mode, vertices occluded by geometry will not be affected.
[*]In [link=select_mode_edge]edge select mode[/link], edges will be selected if any part of the line formed by the edge falls within the selection rectangle. If the mesh is not in wireframe mode, edges occluded by geometry will not be affected.
[*]In [link=select_mode_face]face select mode[/link], faces will be selected if any part of their surface falls within the selection rectangle. If the mesh is not in wireframe mode, faces occluded by geometry will not be affected.
[*]In [link=select_mode_face_corner]face corner select mode[/link], behavior is identical to vertex select mode as described above. All face corners associated with each selected vertex will be selected.
[*][!todo]Currently, bone, bone endpoint, and light selection modes are unimplemented, and these items cannot be selected by this selection tool.
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