Hi Luke, The Chimera distributions on all the platforms (Windows, Mac, Linux, ...) have the same set of features and the same menu entries. The Chimera Tools menu was rearranged several months ago and the Multiscale tool is now under Tools / Higher-Order Structure. Before it was under Tools / Multiscale. The Chimera 1.2184 version has Multiscale but it is in the new location. Apologies for rearranging menu entries. As we get more tools the old Tools categories didn't seem the best. Tom