I'm tweaking a plugin and I'd like to have an option value different for each backoffice user.

Currently the options are defined using the `add_settings_field` method that is performed in the `admin_init` hookup.

My question is, could I register a new set of settings by prefixing my settings using the current user ID?

Such a way, if valid, could help to solve other problems, such:

 - https://wordpress.stackexchange.com/questions/63914/how-to-set-an-individual-homepage-for-each-user
 - https://wordpress.stackexchange.com/questions/98060/settings-api-creating-setting-fields-on-the-fly