The RESEQUENCE (abbreviated RES) command assigns new line numbers to a
 range of lines.

 Format: RESEQUENCE [range] [/SEQUENCE:init:incr]

 The specified range of lines must be contiguous. When you do not specify
 a range, all lines in the  current buffer are resequenced.  If the new
 numbers assigned would cause duplicate or nonsequential line numbers,
 EDT will either disallow the command or renumber lines beyond the
 specified range.

 Note that the total count of lines resequenced (which is displayed upon
 completion of the command), may differ from the number of lines
 originally specified in the range, due to the possibility of extra
 renumbering.