sorry you can try this <field name="name_id" widget="selection"/>

A selection widget? Uhmn, never could have guessed it, i am going to try it. Thanks.

Actually i don't want to remove the create or save button from my form, i just want to remove the option to create it from a many2one call. I want the people not be able to create a client from a sale order for example. Not the create button from the clients view.

I don't want to eliminate the create or save button, i just want, for example, stop the user from creating a new client from a sale order via the many2one client field.