G (for Grab) | select object, type G, allows you to move that object. typing X, Y, or Z causes movement to be constrained to that direction |
R (for Rotate) | select object, type R, allows you to rotate that object. typing X, Y, or Z causes rotation to be constrained to around that axis |
S (for Scale) | select object, type S, allows you to scale that object. typing X, Y, or Z causes scaling to be constrained to that direction typing shift-X, shift-Y, or shift-Z causes scaling to be allowed in the two directions other than the direction selected |
Delete | select object, press Delete. |