Set Tabs

  Determines whether TAB inserts a tab character, inserts space characters,
  or simply moves the cursor.

     Settings        Effects with TAB
     ----------------------------------------------------------------------
     INSERT          (Default.)   TAB inserts a tab character at the current
                     position, pushing the cursor and text beginning with
                     the current character to the right.

     MOVEMENT        TAB moves the cursor to the next tab stop on the line
                     without inserting anything.

     SPACES          TAB inserts spaces at the current position, instead of
                     inserting a tab character.

  Usage notes:

  o  Changing the setting does not affect existing tabs. For example,
     setting the tab mode to SPACES does not convert existing tab characters
     to spaces.

  o  To replace existing tab characters with spaces, use CONVERT TABS.

  o  To save your setting for future editing sessions, use SAVE ATTRIBUTES
     to create a section file or to create or update a command file---see
     help on Attributes.

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  Related topics:

     Attributes     CONVERT TABS     SET TABS     TAB