Pretty simple... I'm running MCUXpresso 10.0.2 (former KDS user), and when I press Alt+F, the File menu of the main IDE window does not expand. If I press and hold Alt, I see the "F" in "File" underlined, along with other key letters. If I press Alt+E, I get the Edit menu. Alt+S gets the Source menu. Alt+T gets the Refactor menu, and so forth. But Alt+F does nothing, which is annoying, because my muscle memory for saving a source file is to hit Alt+F, S. I realize that Ctrl+S is a shortcut for saving a file, and I've been using it as a workaround, but there's no reason for something as basic as a menu hotkey to be broken. I've checked Window / Preferences / General / Keys, and Alt+F is not bound to anything.
Curiously, the "FreeRTOS" menu item has no hotkey underlined when I press Alt. I'm wondering if maybe someone set "F" as its hotkey, but since it conflicts with "File", pressing Alt+F does nothing instead? That's my only theory. Please make Alt+F work again, thanks.