I. To add a comment
To change one or more lines in the input file to a comment, do the following.
place your cursor anywhere on the line you want to comment
select text across mulitple lines
select the Comment tool in the Editing group on the Home ribbon tab
right-click and select Comment Selection
If… Then… No content was selected in Step 1 the current line is made a comment Multiple lines were selected in Step 1 all the lines in the selection are made comments