@kastork I currently load the Objects from a database and the salutations are also saved there. So I load a list of salutations and a list of contacts, then I link from the contact to the salutation. Currently that only works with Objects per table... I also don't want to add a null fake value to the observable list... In case I want to edit/add salutations I don't want to see the fake value. So my current Idea is to have an observableList connected to the observableList of all salutations that adds the null value for the combo.