Hello,
Well, YMMV. This zoom plugin is specifically targeting "presentation mode", when you need to very quickly adapt the font size that is projected to the screen/wall.
Good news: this is a plugin, so you can very easily play with it.
First step: clone it into your ~/.ccw/ folder:
mkdir -p ~/.ccw/ccw-ide
cd ~/.ccw/ccw-ide
Second step: "Alt+U I" in eclipse to automatically import the plugin as a project in your workspace. This will also open a repl view connected to the nrepl server embedded in eclipse.
Third step: the fun begins!