This has been around since Logos 4.0. Just haven't gotten around to reporting it until now, and it's still present in 4.0b Beta 2.
Alt+F4 should either close Logos (if the Main logos window has the focus) or close the current floating window if such has the focus. But if you have a pop-up footnote window open in the currently active floating window or tab, Alt+F4 does nothing.
Steps to repro:
- Open any resource that has footnotes.
- Find a footnote reference marker and click on it to bring up the footnote pop-up window (not just the one that pops up automatically when you hover over the reference marker, but the one that is locked in place even when you move your mouse away and has clickable links in it).
- Press Alt+F4
Result: nothing happens.
Expect: Floating window to close (if you were in a floating window) or Logos to close (if you were in a docked tab in the main Logos window)