Button:
(Standard toolbar)
Shortcut key: CTRL+X
You can use Edit, Cut to copy a rectangular, circular, elliptical, or polygonal area on the current page. This area is then painted with the background color, making it appear that the underlying layers have been erased.
Note: Before you can cut an area of the image, you must have an active edit layer on the page. To find out how to place one, click Adding an edit layer.
Alternatively, you can select objects on the active edit layer and choose Edit ® Cut to delete and copy them.