SelectionAnimate[notebook] animates graphics in the current selection in a notebook. SelectionAnimate[notebook, t] animates graphics for t seconds.
ShowClosedCellArea is an option for cells that specifies whether a rectangular bar is displayed next to a closed cell group to indicate the number of cells in the group.
ShowSelection is an option to Notebook, Cell, and Style that specifies whether to show the current selection highlighted.
SpanAdjustments is an option for selections that specifies the height and width of spanning characters.
StyleBoxAutoDelete is an option for selections that specifies whether a StyleBox wrapped around them should be automatically removed when the expression is edited.
TabFilling is an option for character selections that specifies how a Tab character is represented on the screen.
Temporary is an attribute assigned to symbols which are created as local variables by Module.
TrueQ
(Built-in Mathematica Symbol) TrueQ[expr] yields True if expr is True, and yields False otherwise.
UnderoverscriptBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for selections that specifies settings for UnderoverscriptBox objects.
UnderscriptBoxOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option for selections that specifies settings for UnderscriptBox objects.