For further details about manipulating the context, see the Passing parameters to forms and actions – Context recipe.

Users who speak languages with heavy use of diacritical marks will probably want to have Odoo search for e, è, é, and ê when filling in the e character. This is a configuration of the PostgreSQL server, called unaccent, which Odoo has special support for, but is outside the scope of this book. Refer to https://www.postgresql.org/docs/10/unaccent.html for more information about unaccents.