[Right-click] > Front View (Mathematica Menu Item)

Front View sets the view point for the selected (or clicked upon) 3D graphic to the default front orientation.

Window > Full Screen (Mathematica Menu Item)

Full Screen toggles between full screen and normal display for the current notebook.

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.

[Right-click] > Get Help (Mathematica Menu Item)

Get Help opens documentation about the selected function.

Window > Magnification (Mathematica Menu Item)

Magnification changes the display magnification for a notebook.

Graphics > Rendering > Make Standard ... (Mathematica Menu Item)

Make Standard Size restores selected graphics to the default size.

Cell > Merge Cells (Mathematica Menu Item)

Merge Cells combines selected cells into one cell.

Insert > Picture > New Graphic (Mathematica Menu Item)

New Graphic creates a new graphic at the insertion point.

Evaluation > Notebook's Default Context (Mathematica Menu Item)

Notebook's Default Context specifies the default context for the current notebook's kernel.

Evaluation > Notebook's Kernel (Mathematica Menu Item)

Notebook's Kernel specifies the kernel for a notebook.