OSX Emacs: unbind just the right alt?

Question

I\'m using emacsformacosx.com and would like to stop the Meta_R (right meta, or right option key) on my Apple keyboard from being an Emacs meta key.

The rea

Answer 1

This is not exactly what you want, but this is what I do and may help someone (for instance on the Macbook keyboard which has only one option key): You could bind just the keys you want:

(global-set-key "\M-_" (lambda () (interactive) (ucs-insert "2014")))

for em dash, etc. Just bind whatever you use commonly. In the rare case you want to type something you haven't bound, you can (in Aquamacs, and it should be possible in other Emacsen as well) hit C-; which is bound to toggle-mac-option-modifier, so that Option key is no longer Meta, type the character, and hit C-; again.