You might try CEEClone in the download section. It comments black lines and more.

>Hi all
>
>When I comment out a block of code in the Code Editor in VFP the blank lines are not commented out. I want to comment blanks lines as to keep the block of code together.
>
>Is there any way to make VFP behave this way? I have checked tools > options but have not found it.
>
>Thanks.