Swapping the dollar sign for a euro, American english keyboard I know that the keyboard shortcut to use for the Euro symbol is Option + Shift + 2. But I'm now using the $ key, why can't I just re-assign or reprogram the Shift + 4 key combo to give me €?

Does anyone know a way this can be done?
Two apps for remapping keys are Ukelele and Karabiner.

Also the Dutch keyboard layout is the same as US but has € at Option 2, if that is easier.

You can also set up a text replacement in system preferences/keyboard/text/replace with, so that for example $$ gives you €.