groff: ms Multiple Columns

 
 4.3.6.3 Multiple columns
 ........................
 
 The 'ms' macros can set text in as many columns as do reasonably fit on
 the page.  The following macros are available; all of them force a page
 break if a multi-column mode is already set.  However, if the current
 mode is single-column, starting a multi-column mode does _not_ force a
 page break.
 
  -- Macro: .1C
      Single-column mode.
 
  -- Macro: .2C
      Two-column mode.
 
  -- Macro: .MC [width [gutter]]
      Multi-column mode.  If you specify no arguments, it is equivalent
      to the '2C' macro.  Otherwise, WIDTH is the width of each column
      and GUTTER is the space between columns.  The 'MINGW' number
      register controls the default gutter width.