Solution to related but different problem: I have too many projects with several notebooks that make window management a pain (two dozen browser tabs in a browser I would like to use for other things). My solution in OS X is to use the ancient-but-venerable Fluid app as a wrapper for each project, so I can treat it like a native Mac application. One can open as many new window in Fluid as you like, so one can have cluster info, another netdata, another terminal, and any number of notebooks.