I use the Monitoring Utility and display it on a large TV panel to monitor my rigs, and would want to maximize the entire screen.
For those who may be interested: as a first try of writing javascript applications (I never did that) I wrote a small web app using nodejs that provides the same web page as Claymore's utility.
The advantage is that my app runs on any OS under nodejs (I wrote it on Mac, tested later on Linux, and now it also runs on Windows with no changes at all). And that will be open source, I am going to put it on github later when time permits. Anyone is free to change the source and/or update web page templates to do anything he wants. Honestly, I wish someone with designer skills updates the template so it will look cool on mobile screens with variable screen sizes.
Sorry, short of time now, but here is how it looks like at the moment:
