How can I type the currency symbol for Costa Rican colón on my Mac?
Add it to the Press &amp; Hold character picker

You can add it to a letter's Press &amp; Hold character picker.


Navigate to System/Library/Input Methods/PressAndHold.app/Contents/Resources/.
Backup the Keyboard-en.plist file.
Append the following to the Keyboard-en.plist file (before the closing &lt;/dict&gt;&lt;/plist&gt;).

&lt;key&gt;Roman-Accent-w&lt;/key&gt;
&lt;dict&gt;
    &lt;key&gt;Direction&lt;/key&gt;
    &lt;string&gt;right&lt;/string&gt;
    &lt;key&gt;Keycaps&lt;/key&gt;
    &lt;string&gt;₡&lt;/string&gt;
    &lt;key&gt;Strings&lt;/key&gt;
    &lt;string&gt;₡&lt;/string&gt;
&lt;/dict&gt;



Feel free to change the Roman-Accent-w to any character you wish, providing it does not already have Press &amp; Hold keys assigned.



If you wish to use a character with an existing Press &amp; Hold set, you can append the ₡ to the relevant &lt;string&gt; lines for that character.