.pg !!
.lm CMDTAB.nf
 ________
|        |
|        |
|   .TM  |
|        |
|________|
.fi.lm LEFTMG
.hl 1;TOPMARGIN command
.ix TOPMARGIN
The TOPMARGIN command  sets the number of lines of white space at the top
of each page before the first printing line.
.s.lm +7.nf
 _________ ___________________________________
|         |                                   |
|   .TM   |       n  "lines"                  |
|         |                                   |
|_________|___________________________________|
.fi.lm LEFTMG.s
The TOPMARGIN command sets the number of lines of white space at the top of
each page to be n lines.
.s 2;.lm LEFTMG
Defaults:
.s;.lm +7
This command does not cause a break.
The default value is 6 lines.
If used, the .TM command should be issued before any commands that may cause
the first page to be printed. Otherwise, the top margin of the first page may
not be set. The .TM command may be used to change top margins throughout the
text.