One thing I don't like about Service Manager from an analyst perspective is the Action log. Most Service desk analysts have an active dialogue with the end user through comments and having to expand those all the time is a tedious task. I also think that those comments should be highlighted with a better readability.
So here's my custom solution for the above problem:
Tested with IE11, Chrome 55, Firefox 45 & Edge. (Some GIF editing makes the save button flash in a irrational way )
I've attached the files needed in a zip archive. To install just drop the files in CustomSpace (merge custom.js if you have other stuff there already!)