Wouldn't it be great if speed grader had stamp buttons for your students, kind of like the old days when you would get a stamp like "good job!" on your paper. It would be an easy click, just above the comments, maybe have like 6 of them, could be customizable, change the colors, etc. 

I find that I am typing in "good job!" a lot, and yes, I can use the comment library for this, but it would be nice if it was just a single click. Some options would be:

Great Job!

Nice Work!

I can see you put a lot of effort into this!

Outstanding!

Impressive!

So Creative!