When I select some documents and press Command-Control-Option-Space, they appear in some kind of focus view. What is it called? Can the shortcut be disabled?
A screen capture would be helpful. We’re not always at our Macs.
Yes, a screenshot/-capture would help. I don’t think anything is bound to Cmd-Ctrl-Opt-Space by default.
My guess is that you indeed have nothing bound to that combination, and that the system therefore registers Opt-Space, which is a system-wide shortcut to open a Quick Look slideshow.
The easiest solution should be to override it by binding some other system-wide command to Opt-Space. Spotlight, for example.
I have Cmd-Ctrl-Opt-Space bound to Thing’s “Quick Entry with Autofill”, so I never experienced this.
But weirdly… If I disable it and bind Spotlight to Opt-Space, Cmd-Ctrl-Opt-Space still triggers a Quick Look slideshow in DEVONthink. That’s unexpected. The same doesn’t happen in Finder.
If it bothers you, binding Cmd-Ctrl-Opt-Space to something should fix it. (Actually, why are you pressing those keys if nothing is bound to them?)
I can confirm that it’s a Quick Look slideshow. It’s strange that Cmd-Ctrl-Opt-Space is causing that to happen. Based on the View menu, the command for that should be Cmd-Opt-Y. And that seems to be universal on my system. For example, I see the same command in the File menu for the Finder.
What are you expecting to happen when you press that keyboard combination?