I hope Siri improves, as the moment it just seems like an after thought. Half the time it stops working, and need to disable it from System preferences to get it going again. It asks you have to open the app, but then wont if you ask it to read say messages. I know this will improve with time, and I know it is early days. Just my thoughts.
I have had many problems with Siri myself, just seems a little rushed. It will hopefully improve as more updates are passed. It won't even find images online, waste of time until they improve
I just hope they'd add something like Hey Siri to it - not very useful if I still have to press a key to talk to her.
And what does actually Function Space in Siri's Settings mean?
Function Space is the default keyboard shortcut to activate Siri...FN key + Spacebar. Note that if you use Parallels or other virtualization software, you might want to change it to something else as it might conflict with their keyboard shortcut.
Thanks for the clarification. I suppose even the Localization Team didn't get the meaning of it. In German, it's translated by Funktionsbereich (Space of Function) - should be something more evident like "fnSpace" or "fn␣".