:DOTs	     .PL paper length	  defaults to 11 inches
	    .MT margin top	     "	      3 lines
	    .MB margin bottom	     "	      8 lines
	    .HM heading margin	     "	      2 lines
	    .FM footer margin	     "	      2 lines
	    .PC page # col.	     "	      1/2 right margin
	    .PO page offset	     "	      8 cols.
	    .PA new page
	    .CPn conditional page
	    .HE {or .HE #} header text
	    .FO  "     "   footer text
	    .OP omit page numbers
	    .PN start with page number
	    .IG non-printing comment










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