Specific .sublime-keymap file for no-US keyboard

[pippopippo]

I’ve an Italian keyboard and I’m using Sublime Text 3.
A lot of keyboard shortcuts are wrong and it’s not possible to use them. Is there a way to import ALL the shortcuts for a different layout?
Are specific .sublime-keymap files available somewhere on internet?
This is very annoying and would like to avoid to re-set shortcuts manually one-by-one…