Percent is a unit multiplier.
StochasticMomentumIndex
X Environment Information opens a dialog box that displays the current attributes of the X front end environment (X only).
ConfigurationPath is a global option that specifies which directories are searched for systemwide configuration information.
Full
(Built-in Mathematica Symbol) Full is a setting used for certain options, typically indicating that a full range of values should be included.
GeneratedCell is an option for Cell that indicates whether the cell was generated from the kernel.
PreferencesPath is a global option that specifies which directories are searched for user-specific settings when Mathematica is started.
StyleBoxAutoDelete is an option for selections that specifies whether a StyleBox wrapped around them should be automatically removed when the expression is edited.
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.