I got a request to post here the undocumented tokens I already posted in an old answer on SO.
For completion, I merged my list (which is also in the link provided by @Chris) with @Rojo's list, so to have here a repository of all known FE tokens.
Please feel free to update this answer as new tokens are found.
{
{"AlignBottoms"},
{"AlignCentersHorizontally"},
{"AlignCentersVertically"},
{"AlignLeftSides"},
{"AlignRightSides"},
{"AlignTops"},
{"AllWindowsFront"},
{"BackgroundDialog"},
{"Balance"},
{"BringToFront"},
{"CellContextDialog"},
{"CellGroup"},
{"CellLabelsToTags"},
{"CellMerge"},
{"CellSplit"},
{"CellTagsEditDialog"},
{"CellTagsEmpty"},
{"CellTagsFind"},
{"CellUngroup"},
{"Clear"},
{"ClearCellOptions"},
{"ClearNoAutoScroll"},
{"Close"},
{"CloseAll"},
{"CloseMain"},
{"ColorSelectorDialog"},
{"ColorsPanel"},
{"CompleteSelection"},
{"Copy"},
{"CopyCell"},
{"CopySpecial"},
{"CreateCounterBoxDialog"},
{"CreateGridBoxDialog"},
{"CreateHyperlinkDialog"},
{"CreateInlineCell"},
{"CreateValueBoxDialog"},
{"Cut"},
{"CycleNotebooksBackward"},
{"CycleNotebooksForward"},
{"DebuggerAbort"},
{"DebuggerClearAllBreakpoints"},
{"DebuggerContinue"},
{"DebuggerContinueToSelection"},
{"DebuggerFinish"},
{"DebuggerResetProfile"},
{"DebuggerShowProfile"},
{"DebuggerStep"},
{"DebuggerStepIn"},
{"DebuggerStepInBody"},
{"DebuggerStepOut"},
{"DebuggerToggleBreakpoint"},
{"DebuggerToggleWatchpoint"},
{"DeleteGeneratedCells"},
{"DeleteIndent"},
{"DeleteInvisible"},
{"DistributeBottoms"},
{"DistributeCentersHorizontally"},
{"DistributeCentersVertically"},
{"DistributeLeftSides"},
{"DistributeRightSides"},
{"DistributeSpaceHorizontally"},
{"DistributeSpaceVertically"},
{"DistributeTops"},
{"DuplicatePreviousInput"},
{"DuplicatePreviousOutput"},
{"EditStyleDefinitions"},
{"EnterSubsession"},
{"Evaluate"},
{"EvaluateCells"},
{"EvaluateInitialization"},
{"EvaluateNextCell"},
{"EvaluateNotebook"},
{"EvaluatorAbort"},
{"EvaluatorHalt"},
{"EvaluatorInterrupt"},
{"EvaluatorQuit"},
{"EvaluatorStart"},
{"ExitSubsession"},
{"ExpirationDialog"},
{"ExplainBeepDialog"},
{"ExplainColoringDialog"},
{"ExpressionLinewrap"},
{"FileNameDialog"},
{"FindDialog"},
{"FindEvaluatingCell"},
{"FindNextMisspelling"},
{"FindNextWarningColor"},
{"FinishNesting"},
{"FixCellHeight"},
{"FixCellWidth"},
{"FontColorDialog"},
{"FontFamilyB"},
{"FontPanel"},
{"FontSizeDialog"},
{"FrontEndHide"},
{"FrontEndQuit"},
{"FrontEndQuitNonInteractive"},
{"FrontEndToken[FrontEnd`ButtonNotebook[],\"HyperlinkGo\",`distance`]"},
{"GenerateImageCaches"},
{"GenerateNotebook"},
{"GeneratePalette"},
{"GraphicsAlign"},
{"GraphicsCoordinatesDialog"},
{"GraphicsOriginalSize"},
{"GraphicsPlotRangeAll"},
{"GraphicsPlotRangeAutomatic"},
{"GraphicsPlotRangeFixed"},
{"GraphicsRender"},
{"Group"},
{"HandleShiftReturn"},
{"HeadersFootersDialog"},
{"HelpDialog"},
{"HyperlinkGo"},
{"HyperlinkGoBack"},
{"HyperlinkGoForward"},
{"Import"},
{"ImportPictures"},
{"ImportStyleDefinitions"},
{"Indent"},
{"InsertClipPlane"},
{"InsertMatchingBraces"},
{"InsertMatchingBrackets"},
{"InsertMatchingParentheses"},
{"InsertNewGraphic"},
{"InsertObject"},
{"InsertRawExpression"},
{"InsertSoftReturn"},
{"LicAuthFailureDialog"},
{"MacintoshOpenDeskAccessory"},
{"MenuListBoxFormFormatTypes"},
{"MenuListCellEvaluators"},
{"MenuListCellTags"},
{"MenuListCommonDefaultFormatTypesInput"},
{"MenuListCommonDefaultFormatTypesInputInline"},
{"MenuListCommonDefaultFormatTypesOutput"},
{"MenuListCommonDefaultFormatTypesOutputInline"},
{"MenuListCommonDefaultFormatTypesText"},
{"MenuListCommonDefaultFormatTypesTextInline"},
{"MenuListConvertFormatTypes"},
{"MenuListDisplayAsFormatTypes"},
{"MenuListExportClipboardSpecial"},
{"MenuListFonts"},
{"MenuListFontSubstitutions"},
{"MenuListGlobalEvaluators"},
{"MenuListHelpWindows"},
{"MenuListNotebookEvaluators"},
{"MenuListNotebooksMenu"},
{"MenuListPackageWindows"},
{"MenuListPalettesMenu"},
{"MenuListPaletteWindows"},
{"MenuListPlayerWindows"},
{"MenuListPlugInCommands"},
{"MenuListPrintingStyleEnvironments"},
{"MenuListQuitEvaluators"},
{"MenuListRelatedFilesMenu"},
{"MenuListSaveClipboardSpecial"},
{"MenuListScreenStyleEnvironments"},
{"MenuListStartEvaluators"},
{"MenuListStyleDefinitions"},
{"MenuListStyles"},
{"MenuListStylesheetWindows"},
{"MenuListTextWindows"},
{"MenuListWindows"},
{"ModifyBoxFormFormatTypes"},
{"ModifyDefaultFontProperties"},
{"ModifyEvaluatorNames"},
{"ModifyFontSubstitutions"},
{"ModifyNotebooksMenu"},
{"ModifyRelatedFiles"},
{"MoveBackward"},
{"MoveForward"},
{"MoveToBack"},
{"MoveToFront"},
{"New"},
{"NewPackage"},
{"NewText"},
{"NextFunctionTemplate"},
{"NotebookMail"},
{"NotebookMailSelection"},
{"NotebookOneNote"},
{"NotebookOneNoteSelection"},
{"NotebookStatisticsDialog"},
{"Open"},
{"OpenCloseGroup"},
{"OpenFromNotebooksMenu"},
{"OpenFromNotebooksMenuEmpty"},
{"OpenFromPalettesMenu"},
{"OpenFromRelatedFilesMenu"},
{"OpenHelpLink"},
{"OpenSelection"},
{"OpenSelectionParents"},
{"OpenURL"},
{"OptionsDialog"},
{"PasswordDialog"},
{"Paste"},
{"PasteApply"},
{"PasteApplyNoAutoScroll"},
{"PasteDiscard"},
{"PasteDiscardNoAutoScroll"},
{"PasteSpecial"},
{"PlainFont"},
{"PreferencesDialog"},
{"PreviousFunctionTemplate"},
{"PrintDialog"},
{"PrintOptionsDialog"},
{"PrintSelectionDialog"},
{"PublishToPlayer"},
{"RebuildHelpIndex"},
{"RecordSoundDialog"},
{"RefreshDynamicObjects"},
{"RelatedFilesMenu"},
{"RemoveFromEvaluationQueue"},
{"Replace"},
{"ReplaceAll"},
{"ReplaceFind"},
{"ReplaceParent"},
{"Revert"},
{"RunColorDialog"},
{"RunEdgeColorDialog"},
{"RunFaceColorDialog"},
{"Save"},
{"SaveRename"},
{"SaveRenameSpecial"},
{"ScrollLineDown"},
{"ScrollLineUp"},
{"ScrollNotebookEnd"},
{"ScrollNotebookStart"},
{"ScrollPageBottom"},
{"ScrollPageDown"},
{"ScrollPageFirst"},
{"ScrollPageLast"},
{"ScrollPageNext"},
{"ScrollPagePrevious"},
{"ScrollPageTop"},
{"ScrollPageUp"},
{"SelectGeneratedCells"},
{"SelectionAnimate"},
{"SelectionBrace"},
{"SelectionBracket"},
{"SelectionCloseAllGroups"},
{"SelectionCloseUnselectedCells"},
{"SelectionConvert"},
{"SelectionConvertB"},
{"SelectionDisplayAs"},
{"SelectionDisplayAsB"},
{"SelectionHelpDialog"},
{"SelectionOpenAllGroups"},
{"SelectionParenthesize"},
{"SelectionSaveSpecial"},
{"SelectionScroll"},
{"SelectionSetFind"},
{"SelectionSpeak"},
{"SelectionSpeakSummary"},
{"SelectionUnbracket"},
{"SelectNotebookWindow"},
{"SetDefaultGraphic"},
{"SimilarCellBelow"},
{"SoundPlay"},
{"SpellCheckerDialog"},
{"StackWindows"},
{"Style"},
{"StyleDefinitionsOther"},
{"StyleOther"},
{"SubsessionEvaluateCells"},
{"SystemPrintOptionsDialog"},
{"TemplateSelection"},
{"TestEvaluateNotebook"},
{"TileWindowsTall"},
{"TileWindowsWide"},
{"ToggleDebugFlag"},
{"ToggleDynamicUpdating"},
{"ToggleGrayBox"},
{"ToggleOptionListElement"},
{"ToggleShowExpression"},
{"ToggleTestingFlag"},
{"TrustNotebook"},
{"Undo"},
{"Ungroup"},
{"WindowMiniaturize"},
{"XInfoDialog"},
{"ZoomWindow"},
{"$CellContext`inputnb$$"},
{"FrontEnd`Private`nb"},
{"$CellContext`sourceNotebook$$"},
{"FrontEnd`ButtonNotebook[]"},
{"FrontEnd`EvaluationNotebook[]"},
{"FrontEnd`InputNotebook[]"},
{"FrontEnd`MessagesNotebook[]"}
}
Quoting John Fultz when he gave the list in Jan 2009:
The list is comparatively complete, excepting option names (which can
also be used as tokens)
The MenuList tokens don't do anything. They're just menu
placeholders. Here's something interesting you can do with them...
DynamicModule[{font},
Row[{PopupMenu[Dynamic[font],
FE`Evaluate[FEPrivate`GetPopupList["MenuListFonts"]]], Spacer[20],
Style["The quick brown fox", 20, FontFamily -> font]}]]
FE`Evaluate[FEPrivate`GetPopupList[#]]& returns values appropriate
for PopupMenu, and several FE interfaces take advantage of this, so
it's unlikely to change in the future (although I wouldn't be
surprised if such useful functionality makes its way into much
simpler a top-level function some day).
CurrentValue, mathematica.stackexchange.com/questions/1379, would probably be a good starting point. Of course in this case you won't want to limit the files to.nbs. – Brett Champion Mar 4 '12 at 5:07