Cell > Grouping > Open/Close Group (Mathematica Menu Item)

Open/Close Group toggles a cell group between open and closed. Closing a group collapses all cells in the group so that only the head cell is visible.

[Right-click] > Paste into Graphic (Mathematica Menu Item)

Paste into Graphic inserts the current contents of the clipboard into the selected (or clicked upon) graphic.

Evaluation > Remove From Evaluation ... (Mathematica Menu Item)

Remove From Evaluation Queue cancels the pending evaluation of a cell.

File > Printing Settings > Show Page ... (Mathematica Menu Item)

Show Page Breaks calculates and displays page breaks on screen.

Window > Show Toolbar (Mathematica Menu Item)

Show Toolbar toggles toolbar display along the top of a notebook.

Format > Text Alignment (Mathematica Menu Item)

Text Alignment assigns a text alignment to the selected cells.

Insert > Typesetting (Mathematica Menu Item)

Typesetting opens a submenu of common typesetting actions.

AnchoredSearch (Built-in Mathematica Symbol)

AnchoredSearch is an option for Find and FindList that specifies whether the text searched for must be at the beginning of a record.

Back (Built-in Mathematica Symbol)

Back is a symbol that represents the back of a graphic for purposes of placement and alignment.

BeginDialogPacket (Built-in Mathematica Symbol)

BeginDialogPacket[integer] is a MathLink packet that indicates the start of the Dialog subsession referenced by integer.