Syntax: PopPrefs [n]
Abbreviation: POPP
pops n sets of preferences from the preferences stack (where they were
placed previously by PushPrefs) and applies those preferences to the
current buffer. See PushPrefs. If not specified, n defaults to one. Note that the
preferences stack is global, not buffer specific. Therefore you could
PushPrefs one buffer's preferences, switch buffers, then PopPrefs
those settings altering the preferences for the second buffer. The
maximum preferences stack depth is 32.
   
PushPrefs and PopPrefs are useful in macros that require
certain preferences to work properly.  A macro can PushPrefs,
change any preferences necessary, do its work, then PopPrefs to
restore the users previous preferences settings.
PopPrefs restores the following values from the preferences stack:
       AutoIndent  DelTabs   NoFileReq    StatusBar  VisualBell
       AutoPrefs   DoUndo    PreserveCR   ShiftTabs  WordWrap
       Binary      FreeForm  ReadOnly     Tabs
       CaseSearch  HexCode   RightMargin  TabSize
       ClipNumber  Insert    SearchBack   UTF8Auto