As the Alarm Comment window is a window to the right of the main tabs in the left view, it would make sense for the Alarm Comments window to align with the alarm being viewed.
I have three comment windows that do not align with my alarm tabs, and when I scroll to a different alarm, the comment effectively is orphaned.
Would be simpler just to use Alarm Detail for detailed comments view / update and hover over the comment in Alarm tab to show current comments.