Every time I try to use the aforementioned keyboard shortcuts, LyX says "Command Disabled". How do I activate these shortcuts?

  • Note that "e" is used because it stands for "emphasize", which you can think of as an abstraction of "italicize".
    – scottkosty
    Oct 12, 2014 at 7:27
  • Incidentally, I believe that Ctrl-e and Ctrl+u are the default keystrokes bound to the font-emph and font-underline actions. So you could just use those shortcuts instead.
    – stochastic
    Jun 20, 2017 at 21:05

1 Answer 1


By default Ctrl+I may be set to "inset-toggle" which in regular use doesn't apply, while Ctrl+U should be set to "font-underline" (as is Alt+C U).

You are able to change the key binding sequences to suit your needs. Under Tools > Preferences > Editing > Shortcuts, activate the keys that you're interested in using as shortcut combinations. Specifically, find "font-ital" and "font-underline" under Font, Layouts and Textclasses:

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If a bind is already used elsewhere, you can overwrite this to suit your personal needs.

  • Do you have any advice if the above method doesn't work? I'm trying to map Ctrl+1 to "layout Chapter" but get "Command disabled" even after removing the previous binding.
    – AnnanFay
    Jun 19, 2015 at 15:11
  • (I've managed to get it working with Alt+1, still curious why it didn't work with Ctrl)
    – AnnanFay
    Jun 19, 2015 at 15:18

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