Why can't add an application keyboard shortcut as Shift+Letter?

Discussion in 'OS X Yosemite (10.10)' started by cliffzhu, Dec 26, 2014.

  1. cliffzhu macrumors newbie

    Joined:
    Jun 24, 2012
    #1
    Hi,

    System Preferences -> Keyboard -> Shortcut -> App Shortcuts

    I am trying to add a keyboard shortcut here, I found I can add shortcut like
    Command + C
    Control + C
    Option+C

    But it does not allow me to add shortcut like
    Shift + C

    Why shift key alone can not be used as a keyboard modifier key? What is reason behind it?
     
  2. leman macrumors 604

    Joined:
    Oct 14, 2008
    #2
    I can only guess here, but I would say that shift key is primarily used for inverting the case on the letters, so allowing it as a keyboard modifier would potentially mess up text fields. But I find it surprising that you can use the option key (for which the same reasoning applies).

    At any rate, OS X has an internal logic to its modifier key usage and it is in general a good idea to stick to that for consistency (even though OS X is not fully consistent with it itself)

    CMD key — shortcut for menu items
    CTRL key — additional commands
    OPT key — modify/extend behaviour of a key or a shortcut
     

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