I tried doing it the macOS way by trying to drop it into a Terminal window but didn't quite work. In the Mac apps are self-contained; I hand't really thought about it on Linux but even so I woulnd't know where to begin.
Right now I'm logging off, logging in as root modify what's needed and back to user, as you may know it gets old real fast. I know how to launch stuff on Terminal as root, I just don't know where apps are generally or how to extract their icon in the Activities overlay/menu if it's a huge chaotic shortcut mess like Windows.
I'm using Fedora 28 & RHEL 7.5, BTW -- thanks!