Why is it so difficult to highlight a small portion (a word or single sentence) when commenting on student work?  Students have submitted their work (google slides or google docs) and I end up repeatedly highlighting an entire section of their work rather than being able to just highlight the area I want.  It is a major time suck go back and click undo, especially when it seems to repeatedly keep highlighting too much when I go back to re-do it. 

I don't remember it being this difficult to highlight and comment in past years.   I'm using the same computer and many of the same assignments as previous years.