OK, this is a weird one, with a lot of moving parts. I run Office 365 on Windows 10 under Parallels 14 on Mojave. Apparently MS recently added an app confusingly called Office to the Office 365 package -- a sort of dashboard with buttons to launch the individual Office application and recent files created/edited with them. Until yesterday I had never even seen it before, but now it launches every time I press the caps lock key (which I've configured as a "hyper" key using Karabiner Elements) when I'm in Windows. The app also launches if I manually press all four modifier keys (⇧⌃⌥⌘) at once. Has anyone else seen this, or knows how to stop it?