That was my first reaction but what I found makes it easy and comments are submitted directly into their electronic file. If you didn't see it open the link and on the left side there are several icon links vertically. The second down is a single comment "cloud." Click on that and you can easily enter your comment and when done receive a confirmation. The third one down with a double comment "cloud" allows you to read all electronic comments.

I encourage everyone to submit supporting comments.