4.1. Paste Object Properties  Ctrl+D

Paste all object properties apart from the name onto this object from the object on the Clipboard.

4.2. Paste Material  Ctrl+F

Paste lightmaps, colours and the detail map onto this object from the object on the Clipboard.

4.3. Group

Turns the selection into a group, with the last selected object as Parent (More than one object required)

4.4. Ungroup

Strips the selected object of all its children.

4.5. Bake Action

Turns a Proxy object into a fully editable object, or a Proky Array into individual Proxy Objects.

4.6. Lathe Symmetry  M

This is a Primitive modifier that takes effect on Lathe/Blob/Slab objects.
On Lathes it effectively mirrors the 3rd curve to the other side of curves 1 and 2 to make a symmetrical model. See Lathe Tutorial.

4.7. Hide  H

Toggle hiding this object and its children

4.8. Align

Arrange several objects to line up in an axis

4.9. Distribute

Arrange several objects equally along an axis

4.10. Rotate

Simply rotate by 90 degrees on an axis

4.11. OBJ MIRROR

Flip/Reverse an object along an axis.