[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.

Format > Word Wrapping > Don't Word Wrap (Mathematica Menu Item)

Don't Word Wrap turns word wrapping off.

Evaluation > Evaluate Cells (Mathematica Menu Item)

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

Find Currently Evaluating Cell selects the cell bracket of the currently evaluating cell.

Cell > Convert To > InputForm Display (Mathematica Menu Item)

InputForm Display displays the selection in Mathematica InputForm without interpreting it.

Insert > Table/Matrix > Make Spanning (Mathematica Menu Item)

Make Spanning combines the selected entries from a formatted grid into a single spanning entry.

Cell > Grouping > Manual Grouping (Mathematica Menu Item)

Manual Grouping turns on manual grouping to allow cell grouping by hand.

Cell > Grouping > Open All Subgroups (Mathematica Menu Item)

Open All Subgroups opens all groups in a selection.

[Right-click] > Open in New Window (Mathematica Menu Item)

Open in New Window opens the selected (or clicked upon) documentation link in a new help viewer window.