I'm running the standard Fedora (21 branched) which uses GNOME Shell as the desktop environment, and I want to also install KDE. On Ubuntu its pretty easily done by installing the virtual kde-desktop package, but I can't figure out how to properly do this on Fedora.
I've installed kde-workspace, but still a lot of components are missing (such as volume control, bluetooth support, file manager), some of which I don't even know how to install separately as after numerous yum searchs I still haven't figured out which package contain these - like the network management.