macOS keybindings (alt in emacs vs alt in macOS)

[l@tlo]

I'm trying to set cursor/point navigation in emacs is a way that's similar to 
the standard macOS settings.

I'm stuck at using alt/option + left-right as "left-word" / "right-word".

I have (ns-alternate-modifier 'none), because I need access to access special 
non ascii characters, but that means that alt/option is then ignored by Emacs, 
when I need A-<right> and A-<left> (and a few others) for my setting.

Is there a way to have Emacs accept Alt as a modifier key in some defined 
contexts only and ignore it otherwise?

-- 
Jean-Christophe Helary @jchelary@emacs.ch
https://traductaire-libre.org
https://mac4translators.blogspot.com
https://sr.ht/~brandelune/omegat-as-a-book/