Keyboard short-cut: Alt, E, T; Shift+Del.
Mouse short-cut: 
Deletes selected objects from the Map Window and places them in the Windows Clipboard.
See also…
Edit / Copy
Edit / Paste
Edit / Delete
Deleting objects
Selecting an object
Deletes selected objects from the Map Window and places them in the Windows Clipboard.
Edit / Copy
Edit / Paste
Edit / Delete
Deleting objects
Selecting an object