I'm guessing (hoping) this is coming in the next seed.
JoshD
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So I'm guessing this is waiting on an Xcode/SDK update because I haven't found any way to get it working, aside from falling back to AppDelegate.
Interestingly, the header shows an example where multiple WindowGroups are used and one is assigned a title string for uniqueness. And Commands can be added to both. The question becomes: How does one access the second WindowGroup to perform a New Window command with the added commands?
I second this question.
Are you able to get more than one window type to show up? From what I'm seeing this doesn't appear to support more than one Scene (aside from Settings). But there is "id" for the WindowGroup so that suggests it should be possible.