Ok. But it doesn't matter, it still does the same thing.

Hey Allen, how abouts a default zoom-this-window key command?

I just tried adding a key to the menu item (in the nib) and interestingly it shows exactly the same problem (zooms all windows.)

This is a bit perplexing, either a bug or something related to resolving the first responder for the key equivalent, but the action leading to disturbance of the first responder chain (because of changing window frames,) although hardly it…

My curiosity probably won’t allow this to just rest, but for now, it seems to be not easily doable (adding that key equivalent)