Recently I bought a MacBook Pro 2018. While it is a good design overall, its built-in keyboard is not so great AFAIK. So I bought a mechanical keyboard ikbc c87. The mechanical keyboard is designed for the Windows operating systems. I have to make a few tweaks to make my typing experience smooth.
I have tested the below settings on my MacBook Pro 2018 with the latest Mojave system. For older Mac OS, it probably will work too. But I cannot say for sure.
The Win and Alt keys in the mechanical keyboard correspond to command and option key in the Mac internal keyboard, respectively. But the positions of the two keys are slightly different. In order to make the keyboard work more like Mac internal keyboard, we can use Karabiner-Elements to switch the key mappings of Win and Alt.
After installing Karabiner-Elements, open its preference and choose Simple Modifications. Then, choose your external keyboard as Target Device. Click
the Add item button to add one mapping. We need to add four mappings in
total, i.e.,
| From key | To key |
|---|---|
| left_alt | left_gui |
| left_gui | left_alt |
| right_alt | right_gui |
| right_gui | right_alt |
The left_gui and right_gui keys are equal to left_command and
right_command.
After this step, you may also consider changing the key caps of Win and Alt to make it clear you have switched the functions of Alt and Win.
While using the external keyboard, you may want to disable the internal keyboard temporarily.
First, open Karabiner settings and go to Devices menu. In the bottom section,
check the button of external USB keyboard to disable the built-in keyboard when
external keyboard is connected.
Home and End key behave like Windows#On Mac, by default, if you press Home and End key, you will go to the beginning and end of current document, which is often not what you expect. We can make the behavior of Home and End key like Windows, i.e., go to the beginning and end of current line.
First, create a folder ~/Library/KeyBindings/ if it does not exist. Then
create a file named DefaultKeyBinding.dict and add the following settings
into it:
{
"\UF729" = moveToBeginningOfLine:; // home
"\UF72B" = moveToEndOfLine:; // end
"$\UF729" = moveToBeginningOfLineAndModifySelection:; // shift-home
"$\UF72B" = moveToEndOfLineAndModifySelection:; // shift-end
"^\UF729" = moveToBeginningOfDocument:; // ctrl-home
"^\UF72B" = moveToEndOfDocument:; // ctrl-end
"^$\UF729" = moveToBeginningOfDocumentAndModifySelection:; // ctrl-shift-home
"^$\UF72B" = moveToEndOfDocumentAndModifySelection:; // ctrl-shift-end
}Rebooting is needed. The change should take effect after system restart.
Now, happy typing!
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