[Right-click] > Copy Image (Mathematica Menu Item)

Copy Image copies the selected (or clicked upon) image to the clipboard.

Edit > Cut (Mathematica Menu Item)

Cut deletes a selection and pastes it to the clipboard.

Evaluation > Evaluate in Place (Mathematica Menu Item)

Evaluate in Place evaluates a selection in place.

Help > Function Navigator (Mathematica Menu Item)

Function Navigator opens the Wolfram Mathematica Function Navigator, which is a hierarchical view of the guide page collection found in the Documentation Center.

Cell > Notebook History... (Mathematica Menu Item)

Notebook History displays a time record of changes made in the input notebook.

Evaluation > Notebook's Kernel (Mathematica Menu Item)

Notebook's Kernel specifies the kernel for a notebook.

Insert > Output from Above (Mathematica Menu Item)

Output from Above copies the contents of the nearest preceding output cell.

Evaluation > Parallel Kernel Status... (Mathematica Menu Item)

Parallel Kernel Status opens a dialog with statistics on active parallel kernels.

File > Send To... (Mathematica Menu Item)

Send To launches your email application to email a notebook (Windows only).

[Right-click] > Show Cell (Mathematica Menu Item)

Show Cell toggles between the expression and display forms of a cell.