I like using the popover menus very much, but it’s not always easy to guess which commands are recognized. For example, “b” in the keys popover means “B minor” whereas “1b” means “F major (1 flat)”. Or “end” in the bars popover means “repetition end”, not “end of score”. Or how do I enter an alla breve meter (dashed C) in the meter popover?
Is there a reference of some kind of all the popover shortcuts and their meanings?