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I would like to use Cmd+/ instead of Alt+/ to move the cursor word by word in Mac OSX (A Cocoa thing I guess).

Is it possible to change that?

And by the same token, I would like to move the cursor to the beginning and end of the line by using Alt+/ instead of Cmd+/.

Can it be done?

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up vote 5 down vote accepted

One option would be to create ~/Library/KeyBindings/ and save this as DefaultKeyBinding.dict:

    "@\UF702" = moveWordBackward:;
    "@\UF703" = moveWordForward:;
    "~\UF702" = moveToBeginningOfLine:;
    "~\UF703" = moveToEndOfLine:;
    "~$\UF702" = moveToBeginningOfLineAndModifySelection:;
    "~$\UF703" = moveToEndOfLineAndModifySelection:;

You can't change ⇧⌘← or ⇧⌘→ though. And it doesn't work in some text views or Xcode or Firefox.

Using KeyRemap4MacBook, you could add this to private.xml:

<autogen>--KeyToKey-- KeyCode::CURSOR_LEFT, VK_OPTION | ModifierFlag::NONE, KeyCode::CURSOR_LEFT, VK_COMMAND</autogen>
<autogen>--KeyToKey-- KeyCode::CURSOR_RIGHT, VK_OPTION | ModifierFlag::NONE, KeyCode::CURSOR_RIGHT, VK_COMMAND</autogen>
<autogen>--KeyToKey-- KeyCode::CURSOR_LEFT, VK_SHIFT | VK_OPTION | ModifierFlag::NONE, KeyCode::CURSOR_LEFT, VK_SHIFT | VK_COMMAND</autogen>
<autogen>--KeyToKey-- KeyCode::CURSOR_RIGHT, VK_SHIFT | VK_OPTION | ModifierFlag::NONE, KeyCode::CURSOR_RIGHT, VK_SHIFT | VK_COMMAND</autogen>
<autogen>--KeyToKey-- KeyCode::CURSOR_LEFT, VK_COMMAND | ModifierFlag::NONE, KeyCode::CURSOR_LEFT, VK_OPTION</autogen>
<autogen>--KeyToKey-- KeyCode::CURSOR_RIGHT, VK_COMMAND | ModifierFlag::NONE, KeyCode::CURSOR_RIGHT, VK_OPTION</autogen>
<autogen>--KeyToKey-- KeyCode::CURSOR_LEFT, VK_COMMAND | VK_SHIFT | ModifierFlag::NONE, KeyCode::CURSOR_LEFT, VK_OPTION | VK_SHIFT</autogen>
<autogen>--KeyToKey-- KeyCode::CURSOR_RIGHT, VK_COMMAND | VK_SHIFT | ModifierFlag::NONE, KeyCode::CURSOR_RIGHT, VK_OPTION | VK_SHIFT</autogen>

It would make going back with ⌘← and changing tabs with ⇧⌘← stop working though.

See the source for the key code constants and predefined settings.

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Yes. Using Keyboard Maestro, I just created two new macros.

The first has a "hot key trigger" of < command >< left arrow > and does a "type a keystroke" of < option >< left arrow >

The second is the reverse, a "hot key trigger" of < option >< left arrow > and does a "type a keystroke" of < command >< left arrow >. And it does work.

You could then add 2 more macros for the right direction.

The way I wrote them as a quick test they are system wide but they can be limited to specific sets of applications.

While Keyboard Maestro is not free, it does have time limited demo.

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Thanks for the suggestion. I would prefer a free method. I bet there's some way to dig in the settings/files of the system somehow... – trusktr Feb 18 '13 at 2:02

I've used KeyBindingsEditor (free) to edit the DefaultKeyBindings.dict and it works great (even in Firefox and XCode).

cursor settings with KeyBindingsEditor

Leaving the thumb button on the ⌘ key while cruising the text cursor works so much better -- it should be the default!

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Nice tool! Thanks! – trusktr Sep 6 '14 at 16:19
I haven't tried this in Yosemite. Do you know if still works? – trusktr Nov 9 '14 at 3:33
It does!! :) :) :) – trusktr Nov 9 '14 at 3:43

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