You can tweak the index.html file to hide the sections you do not use and have more room for extensions by editing just the css classes (by means of the 960 grid system). You can also tweak the operator.css file to change the button size, and even change the presence.js file and set the line display to 1 to make the buttons smaller too. And you can also use the filter box for a quick way to filter the list and see the buttons you need.