The Selection tool is used to select an area of the document. Once selected this area can be moved, copied or changed via the filters available in the inspector.
	To move a selection click inside the marquee and drag to desired location.
	To copy a selection select the Copy menu item.
	In addition to manipulating selections, the Selection tool has a set of filters that can change the image in the selection.
	To apply a filter to the selection, select the filter from the popup list in the inspector panel and press the apply button. To immediately undo the effects of the filter press the revert button. The Undo menu item will also undo the effects of the filter, but removes the selection as well.