File > Close (Mathematica Menu Item)

Close closes the current notebook.

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

Copy Address copies the address of the selected (or clicked upon) hyperlink to the clipboard.

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

Copy Hyperlink copies the selected (or clicked upon) hyperlink text to the clipboard.

Insert > Typesetting > End Subexpression (Mathematica Menu Item)

End Subexpression moves the cursor from a subexpression to the expression at the n\[Null]^th level.

Edit > Enter Selection (Mathematica Menu Item)

Enter Selection places a selection into the Search for: field of the Find dialog box.

Cell > Cell Properties > Evaluatable (Mathematica Menu Item)

Evaluatable toggles a cell between evaluatable and unevaluatable. Only evaluatable cells can be sent to the kernel.

Evaluation > Evaluate Cells (Mathematica Menu Item)

Evaluate Cells sends the selected cells to the kernel for evaluation.

Evaluation > Evaluate Initialization ... (Mathematica Menu Item)

Evaluate Initialization Cells evaluates all initialization cells in the notebook.

Format > Face (Mathematica Menu Item)

Face assigns font face variations (Plain, Bold, Italic, or Underline) to selections.

Cell > Cell Tags > Find Cell Tag (Mathematica Menu Item)

Find Cell Tag opens a submenu to find and select cells based on their cell tags.